CONTENTS

RIKEN Accel. Prog. Rep. 49 (2016)

C O N T E N T S
PagePREFACEPHENIX – looking at hot and cold nuclear matter and resurrecting itself again and again
Ⅰ. HIGHLIGHTS OF THE YEAR
Extension of the N=40 island of inversion to neutron-rich Cr and Fe isotopes·····················································
C. Santamaria et al.

1

Low-lying structure of 50Ar and the N = 32 subshell closure··········································································
D. Steppenbeck et al.

2

Candidate resonant tetraneutron state populated by the 4He(8He,8Be) reaction·····················································
K. Kisamori et al.

3Magnetic moment measurement of isomeric state in 75Cu·············································································
Y. Ichikawa et al.

4

Deuteron Analyzing Powers for d-p elastic scattering at 190 MeV/nucleon and three-nucleon force effects··················
K. Sekiguchi et al.

5

Measurement of multiple isobar chains as a first step toward SHE identification via mass spectrometry·······················
P. Schury, M. Wada, Y. Ito et al.

6

Gauge symmetry in the large-amplitude collective motion of superfluid nuclei····················································
K. Sato7

Cross section measurement for the spallation reaction of long-lived fission products·············································
H. Wang, H. Otsu et al.

8πFinal results of ALL
measurement at √ s = 510 GeV at mid-rapidity through a PHENIX experiment····························
I. Yoon9

AN of forward neutron production in √ s = 200 GeV polarized proton-nucleus collisions in the PHENIX expermient·······
M. Kim et al.

10

0

–

–

Search for the deeply bound K −pp state from the semi-inclusive forward-neutron spectrum in the in-flight K − reaction
on helium-3····························································································································
T. Hashimoto et al.

11

Phase-space distributions in QGP and thermal photons················································································A. Monnai

12Λb → p ℓ − ν−ℓ and Λb → Λc ℓ − ν−ℓ form factors from lattice QCD with relativistic heavy quarks····································
S. Meinel et al.

13

Development of carbon disk at the final stripping section·············································································
H. Hasebe et al.

14

Development of Particle identiﬁcation method of high-intensity secondary beams at BigRIPS·································
S. Ota et al.

15

The first on-line commissioning study on parasitic production of low-energy RI-beam system(PALIS) at BigRIPS·········
T. Sonoda et al.

16

NeuLAND demonstrator at SAMURAI: commissioning and efficiency studies···················································J. Kahlbow et al.

17

Beam commissioning of the rare-RI ring·································································································
Y. Yamaguchi et al.

18

Measurement of isochronism using 78Kr beam for the Rare RI Ring·································································
Y. Abe et al.

19

Possible muonic radical formation in cytochrome c····················································································
Y. Sugawara et al.

20

Development of a rapid solvent extraction apparatus for the aqueous chemistry of the heaviest elements·····················
Y. Komori et al.

21

Production of 67Cu using the 70Zn(d,αn)67Cu reaction···················································································
S. Yano et al.

22

RIKEN Accel. Prog. Rep. 49 (2016)

CONTENTS

Characteristics of genomic rearrangements induced by heavy-ion beam irradiation in Arabidopsis thaliana··················
T. Hirano et al.

23

Breeding of Summer-Autumn Flowering Chrysanthemum cv. Hakuryo with a little generation of malformed flower·······
A. Hisamura et al.

24

Ⅱ. RESEARCH ACTIVITIES I (Nuclear, Particle and Astro-Physics)

1. Nuclear Physics
Decay properties of 68,69,70Mn···············································································································
G. Benzoni, A.I. Morales

25

Excited states of 136−138Sb from β decay···································································································
J. Keatings, G. Simpson et al.

26

TZ = −1 and TZ = −2 β-decay studies using 78Kr fragmented beams at BigRIPS, part I············································
B. Rubio et al.

27

TZ = −1 and TZ = −2 β-decay studies using 78Kr fragmented beams at BigRIPS, part II···········································
B. Rubio et al.

28

Isospin symmetry studies beyond the f7/2 shell: study of the beta decay of 70,71Kr··················································
A. Algora et al.

29

Discovery of a μs isomer of 76Co··········································································································P-A Söderström et al.

30

Determination of Qβ for the Gamow-Teller decay of 100Sn and 98Cd··································································
D. Lubos and J. Park

31

Investigation of octupole correlations of neutron-rich Z ~ 56 isotopes by β-γ spectroscopy······································
R. Yokoyama et al.

32

Study of neutron-rich 142Xe using β-decay spectroscopy···············································································
A. Yagi et al.

33

New neutron-deficient isotopes from 78Kr fragmentation··············································································
B. Blank et al.

34

Second campaign of the SEASTAR project······························································································
P. Doornenbal et al.

35

Intermediate-energy Coulomb excitation of 77Cu·······················································································
E. Sahin et al.

36

Coulomb excitation of 136Te studied with the DALI2 spectrometer··································································
V. Vaquero et al.

37

Experimental study of isoscalar and isovector dipole resonances in neutron-rich oxygen isotopes······························
N. Nakatsuka et al.

38

Study of the pygmy dipole resonance of 132Sn and 128Sn in inelastic α-scattering··················································
J. Tscheuschner and T. Aumann

39

E1 strength around threshold in 70Ni······································································································
R. Avigo and O. Wieland40

In-beam γ-ray spectroscopy of 55Sc·······································································································
D. Steppenbeck et al.

41

Spectroscopy of unbound oxygen isotopes II····························································································
Y. Kondo et al.

42

First commissioning results for SπRIT-TPC·····························································································
M. Kurata-Nishimura et al.

43

Study on neutron-neutron correlation in Borromean nuclei via the (p, pn) reaction with the SAMURAI spectrometer······
Y. Kubota et al.

44

Study of Gamow-Teller transition from 132Sn via the (p, n) reaction in inverse kinematics·······································
J. Yasuda et al.

45

Progress report of Gamow−Teller giant resonance studies at RIBF··································································
M. Sasano et al.

46

Interaction cross section measurement of neutron-rich nuclei 17,19B··································································A. T. Saito et al47

CONTENTS

RIKEN Accel. Prog. Rep. 49 (2016)

Time-of-Flight mass measurements of neutron-rich Ca isotopes beyond N = 34···················································
M. Kobayashi et al.

48

Isomer spectroscopy of neutron-rich nuclei near N = 40···············································································
Y. Kiyokawa et al.

49

The (16O, 16F(0−)) reaction to study spin-dipole 0− states···············································································
M. Dozono et al.

50

Spectroscopy of single-particle states in oxygen isotopes via the AO(p, 2p) reaction··············································
S. Kawase et al.

51

Spectroscopic factors of the proton bound states in 23,25F ··············································································
T.L. Tang et al.

52

Spin-dipole response of 4He by exothermic charge exchange (8He,8Li* (1+))·······················································
H. Miya et al.

53

Magnetic moment measurement of isomeric state in 99Zr and characterization of the abrasion-fission mechanism···········
F. Boulay, J.M. Daugas et al.

54

First dedicated in-beam X-ray measurement at GARIS················································································
C. Berner

55

Isotope identification in nuclear emulsion plate for double-hypernuclear study····················································
S. Kinbara et al.

56

Measurement of nuclear magnetic moment of neutron-rich 39S·······································································
Y. Ishibashi et al.

57

Polarization measurements of 39S for β -NMR studies··················································································
A. Gladkov et al.

58

β-NMR measurement in coincidence with β-delayed γ rays of 39S···································································
L.C. Tao et al.

59

First application of the Trojan Horse Method with a radioactive ion beam: study of the 18F(p,α)15O reaction
at astrophysical energies·············································································································
S. Cherubini et al.

60

Different mechanism of two-proton emission from excited states of proton-rich nuclei 23Al and 22Mg·························
Y.G. Ma et al.

61

Observation of resonances in 14C with 10Be+α resonant elastic scattering at CRIB················································
H. Yamaguchi et al.

62

New Trojan Horse study of the 18F(p, α)15O reaction at astrophysical energies·····················································
S. Cherubini et al.

63

17

F elastic scattering and total reaction cross section on 58Ni target around Coulomb barrier·····································
C.J. Lin, N.R. Ma et al.

64

Measurement of alpha elastic scattering on 15O·························································································
A. Kim et al.

65

RI beam production at BigRIPS in 2015·································································································
Y. Shimizu et al.

66

Production cross section measurement for radioactive isotopes produced from 78Kr beam at 345 MeV/nucleon
by BigRIPS separator·················································································································
H. Suzuki et al.

68

Production cross-section measurements for the systematics of Na and Mg isotopes with 48Ca beam···························
D.S. Ahn et al.

69

RI-beam production using BigRIPS separator in regions heavier than those belonging to lead isotope························
T. Sumikama et al.

70

Development of a slowed-down beam of 82Ge at RIBF················································································
T. Sumikama et al.

71

Target study for magnetic moment measurement of 40Sc···············································································
Y. Ishibashi et al.

72

Giant dipole resonance built on hot rotating nuclei produced during evaporation of light particles
from the 88Mo compound nucleus···································································································
M. Ciemala et al.

73

RIKEN Accel. Prog. Rep. 49 (2016)

CONTENTS

Experimental investigation on the temperature dependence of the nuclear level density parameter·····························
B. Dey et al.

74

2. Nuclear Physics (Theory)
Impurity effects of the Λ particle on the 2α cluster states of 9Be and 10Be···························································
M. Isaka and M. Kimura

75

Excited states above the Hoyle state······································································································
Y. Funaki

76

Shell-model fits for N = 82 isotones·······································································································
M. Honma et al.

77

Soft negative-parity excitations of rotating super- and hyperdeformed states around 40Ca studied
by Skyrme-RPA calculations········································································································
M. Yamagami and K. Matsuyanagi

78

Pairing Reentrance in warm rotating 104Pd nucleus·····················································································
N. Quang Hung et al.

79

Effects of thermal shape fluctuations and pairing fluctuations on the giant dipole resonance in warm nuclei··················
A.K. Rhine Kumar et al.

80

Stability of the wobbling motion in an odd-A nucleus·················································································
K. Tanabe, K. Sugawara-Tanabe

81

Constraints on the neutron skin and the symmetry energy from the anti-analog giant dipole resonance in 208Pb··············
Cao, Roca-Maza, Colo and Sagawa

82

Variational study of the equation of state for neutron star matter with hyperons···················································
H. Togashi et al.

83

Joint project for large-scale nuclear structure calculations in 2015···································································
N. Shimizu et al.

84

3. Nuclear Data
Measurements of secondary neutrons produced from thin Be and C by 50 MeV/u 238U beam···································
H.S. Lee et al.

85

Coulomb breakup reactions of long-lived fission products, 79Se, 93Zr, and 107Pd····················································S. Takeuchi et al.

86

Cross section measurement of residues in proton- and deuteron-induced spallation reactions of 93Zr and 93Nb···············
S. Kawase et al.

87

Simulation of thick-target transmission method for interaction cross sections of 93Zr on 12C·····································
M. Aikawa et al.

88

Nuclear data study for the development of transmutation technology·······························································
S. Ebata et al.

89

Compilation of nuclear reaction data from the RIBF in 2015·········································································
D. Ichinkhorloo et al.

90

New EXFOR editor: a review of recent developments·················································································
A. Sarsembayeva et al.

91

4. Hadron Physics
Determination of the detector acceptance correction for the PHENIX W → μ analysis···········································
S. Park

93

Overall trigger efficiency estimation for W analysis at PHENIX·····································································
Sangwha Park and Ralf Seidl

94–

Status of longitudinal double helicity asymmetries (ALL) in π± productions in √ s = 510 GeV polarized p + p collisions
in RHIC-PHENIX experiment······································································································
T. Moon et al.

95

Quality assurance of PHENIX spin database for Run 15 at RHIC····································································
S. Karthas et al.

96

Gain calibration of the PHENIX Shower Max Detector (SMD)······································································
J. Yoo et al.

97

CONTENTS

RIKEN Accel. Prog. Rep. 49 (2016)

Measurement of transverse single spin asymmetry for J/ψ production in polarized p+p and p+Au collisions at PHENIX····
C. Xu, H. Yu and X. Wang

98

Studies on transverse spin properties of nucleons at PHENIX········································································
Y. Goto99

Investigation of prompt photon asymmetries using the MPC-EX detector at Brookhaven National Laboratory··············
D. Kapukchyan

100—

Analysis of displaced electron tracks with the silicon vertex tracker in Au+Au collisions √ s = 200 GeV
at RHIC-PHENIX·····················································································································
H. Asano et al.
NN

101

Current status of open heavy flavor measurements in RHIC-PHENIX RUN14····················································
K. Nagashima et al.

102

Single electron yields from semileptonic charm and bottom hadron decays in Au+Au collisions at √ s
T. Hachiya et al.

= 200 GeV········

103= 200 GeV································

104

Searching for mini-QGP in p+p collisions using a high multiplicity trigger with the FVTX·····································
S. Han et al.

105

Silicon tracker for sPHENIX···············································································································
I. Nakagawa et al.

106

Forward Jet asymmetry measurements in fsPHENIX··················································································
R. Seidl and A. Vossen

107

Towards measurment of direct photons via external conversions in high multiplicity pp collisions at 13 TeV················
H. Murakami

108

Neutral pion production in pp collisions at LHC energies·············································································
Satoshi Yano

109

Long-range correlation of V0 particles in p-Pb collisions at √ s
Y. Sekiguchi= 5.02 TeV with the ALICE detector························

110

Search for exotic dibaryons at LHC-ALICE·····························································································
K. Terasaki et al.

111

RHICf experiment to measure cross section and asymmetry in very forward neutral particle production at RHIC···········
T. Sako et al.

112

Fragmentation function measurements in Belle·························································································
R. Seidl et al.

113

Progress of Drell−Yan experiment by SeaQuest at Fermilab··········································································
K. Nagai et al.

114

—

—

Measurements of directed, elliptic, and triangular flow in Cu+Au collisions at √ s
H. Nakagomi for the PHENIX

—
NN

NN

NN

5. Hadron Physics (Theory)
P-odd spectral density of quark-gluon plasma at weak coupling······································································
H.-U. Yee

115

Legendre expansion of longitudinal two-particle correlations········································································A. Monnai and B. Schenke

116

Constraining shear viscosity of QCD matter at forward rapidity·····································································
G. Denicol et al.

117

Axial current generation by P-odd domain in QCD matter············································································
I. Iatrakis, S. Lin and Y. Yin

118

Anomalous chiral effects in heavy ion collisions·······················································································JINFENG LIAO

119

Transverse momentum dependent jet model for quark fragmentation functions····················································
W. Bentz and K. Yazaki

120

Perturbative matching for quasi-PDFs between continuum and lattice······························································
T. Ishikawa

121

Chiral contamination in nucleon correlation functions·················································································
B.C. Tiburzi

122

RIKEN Accel. Prog. Rep. 49 (2016)

CONTENTS

High-precision calculation of the strange nucleon electromagnetic form factors···················································J. Green, S. Meinel et al.

123

6. Particle Physics
Lattice determination of |Vus| with inclusive hadronic τ decay experiment···························································
T. Izubuchi and H. Ohki

125

Standard-model prediction for direct CP violation in K → ππ decays·······························································
C. Kelly

126

Dipolar quantization and the infinite circumference limit of 2d CFT································································
T. Tada127

Revision of the brick wall method for calculating the black hole thermodynamic quantities·····································
F. Lenz, K. Ohta and K. Yazaki

128

Direct detection of composite dark matter via electromagnetic polarizability······················································
E.T. Neil et al.

129

7. Astrophysics and Astro-Glaciology
Diagnose oscillation properties observed in an annual ice-core oxygen isotope record obtained
from Dronning Maud Land, Antarctica····························································································
Y. Hasebe et al.
Box-model simulation for variation of atmospheric chemical composition caused by solar energetic particles···············
Y. Nakai et al.
Overview of the chemical composition and characteristics of Na+ and Cl− distributions in samples
from Antarctic ice core DF01 (Dome Fuji) drilled in 2001·····································································
Y. Motizuki et al.

131
132

133

8. Accelerator
Energy upgrade for biological applications······························································································
N. Fukunishi et al.

135

Installation of changeover switches for dipole and quadrupole magnet on a new beam transport line··························
K. Kumagai et al.

136

Progress in high-temperature-oven development for 28 GHz ECR ion source·····················································
J. Ohnishi et al.

137

Search for suitable scintillation materials for the pepper-pot type emittance meter for diagnostics
of low-energy heavy ion beams from an ECR ion source·······································································
T. Nagatomo et al.

138

Design of input coupler for RIKEN superconducting quarter-wavelength resonator··············································
K. Ozeki et al.

139

Study of plasma window for larger aperture·····························································································
N. Ikoma et al.

140

Plasma spectroscopy for ECR ion source tuning at RIKEN···········································································
H. Muto et al.

141

Status of cryopumps in accelerator facilities·····························································································
Y. Watanabe et al.

142

Nishina RIBF water-cooling system······································································································
T. Maie et al.

143

Development of pepper-pot emittance monitor for AVF cyclotron···································································
Y. Kotaka et al.

144

HTc-SQUID beam current monitor at the RIBF·························································································
T. Watanabe et al.

145

Radiation monitoring in the RIBF using ionization chamber··········································································
M. Nakamura et al.

146

Improvement of the RIBF control system································································································
M. Komiyama et al.

147

Control system renewal for efficient operation of RIKEN 18 GHz electron cyclotron resonance ion source··················
A. Uchiyama et al.

148

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RIKEN Accel. Prog. Rep. 49 (2016)

EPICS PV management and method for RIBF control system········································································
A. Uchiyama et al.

149

New operation interface for rf voltage and phase of RIBF cyclotrons using rotary encoder······································
K. Yamada et al.

150

Development of a buffer gas-free Buncher for SCRIT experiments··································································
K. Yamada et al.

151

Lithium ion production for laser ion source······························································································
M. Okamura et al.

152

Response of an axial magnetic field to injection of laser ablation plasma···························································
S. Ikeda et al.

153

Peformance of a fast kicker magnet for Rare-RI Ring··················································································
H. Miura et al.

154

9. Instrumentation
Ion-optical study of additive and subtractive modes of BigRIPS·····································································
H. Takeda et al.

155

PPAC high-rate study with Z ～ 50 beams (MS-EXP15-09)··········································································
H. Sato et al.

156

ANSYS code calculations for measuring beam spot temperature····································································
Z. Korkulu et al.

157

Measurement of beam-spot temperature on production target at BigRIPS··························································
Y. Yanagisawa et al.

158

Temperature measurements of the high power beam dump of the BigRIPS separator·············································
K. Yoshida et al.

159

Production of low-energy 4.17 MeV/nucleon 9C beam with polyethylene degrader at RIPS·····································
E. Milman et al.

160

SpiRITROOT: an analysis framework for the SπRIT experiment····································································
G. Jhang et al.

161

Construction of readout system for SPiRIT-TPC························································································
T. Isobe et al.

162

Multiplicity trigger array for the SπRIT experiment····················································································
M. Kaneko et al.

163

Performance test of the silicon tracker for the heavy-ion-proton experiments at SAMURAI····································
V. Panin et al.

164

Development for proton detector NINJA at SAMURAI magnet gap with VME-EASIROC readout····························
N. Chiga et al.

165

Frame design for the γ-ray detector array CATANA····················································································
N. Chiga et al.

166

Status of the (p, 2p) silicon tracker for upcoming fission experiments with the SAMURAI spectrometer·····················
S. Reichert, M. Sako et al.

167

Development of the He-filling system for the SAMURAI spectrometer·····························································
V. Panin et al.

168

Beta-delayed neutron measurement with new detector NiGIRI·······································································
V. H. Phong et al.

169

Low-pressure MWDC system for ESPRI experiment (II)·············································································
Y. Matsuda et al.

170

Development of a new low-energy neutron detector with pulse shape discrimination properties for (p,n) experiments······
L. Stuhl et al.

171

Hyperpolarization of flowing water by dynamic nuclear polarization·······························································
K. Yamada et al.

172

Design study of triplet-resonance circuit to polarize 13C spins utilizing dynamic nuclear polarizationand cross polarization················································································································
T. Kaneko, K. Tateishi and T. Uesaka

173

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CONTENTS

Dependence of spin-polarized proton target performance on microwave resonator thickness parameterand operation temperature···········································································································
S. Chebotaryov et al.

174

Pressure dependence of effective gas gain of THGEM in deuterium gas····························································
C.S. Lee et al.

175

Development of 178m2Hf isomer target·····································································································
N. Kitamura et al.

176

Construction of OEDO beamline··········································································································
S. Michimasa et al.

177

Simulation study of a new energy-degrading beamline, OEDO······································································
M. Matsushita et al.

178

Performance of a resonant Schottky pick-up in the commissioning of Rare RI Ring··············································
F. Suzaki et al.

179

Online results for the injection ion optics of the Rare RI Ring········································································
Z. Ge et al.

180

Circulation detector for Rare RI Ring·····································································································
D. Nagae

181

Study on background suppression of charged particles using GARIS-II filled with He-H2 mixture·····························
D. Kaji et al.

182

Current status of a gas-cell system for precision experiments with GARIS-II······················································
Y. Ito et al.

183

Extraction of multi-nucleon transfer reaction products in the 136Xe and 198Pt system··············································
Y. Hirayama et al.

184

Measuring luminosity of electron scattering from Xe isotopes at the SCRIT experiment·········································
A. Enokizono et al.

185

Current status of RI beam production at electron-beam-driven RI separator for SCRIT (ERIS)·································
T. Ohnishi et al.

186

Commissioning of SCRIT electron scattering facility with stable nuclear targets··················································
K. Tsukada et al.

187

New design of timing-controller circuit board for accelerators in the SCRIT facility·············································
M. Watanabe et al.

188

All-solid-state continuous-wave laser source at 313 nm for laser cooling of Be+ ions·············································
A. Takamine et al.

189

An injection-locked Titanium:Sapphire laser for high-resolution in-jet resonance ionization spectroscopy at PALIS········
M. Reponen et al.

190

Development of magnetic field coils for laser spectroscopy of atoms in He II·····················································
T. Fujita et al.

191

Intensity evaluation of laser-RF double resonance signal of Rb atoms in superfluid helium cryostat···························
K. Imamura et al.

192

Formation of uniform heavy-ion beam for industrial utilization······································································
T. Kambara and A. Yoshida

193

Gamma-ray inspection of rotating object·································································································
T. Kambara et al.

194

Development of a new cluster reconstruction method for GEM Tracker for the J-PARC E16 experiment·····················
W. Nakai et al.

195

Study of the effect of radiation damage on the quantum efficiency of a CsI photocathode·······································
K. Kanno

196

Performance of the FVTX high-multiplicity trigger system for the RHIC-PHENIX experiment Run15·······················
T. Nagashima et al.

197

R&D of silicon strip detector for the sPHENIX tracker················································································
G. Mitsuka et al.

198

Development of sensor prototype for sPHENIX Silicon Tracker·····································································
Y. Akiba et al.

199

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RIKEN Accel. Prog. Rep. 49 (2016)

Implementation of the TDC function in the GTO·······················································································
T. Yoshida et al.

200

New functions in Generic Trigger Operator······························································································
H. Baba et al.

201

Upgrade of trigger circuits and DAQ modules for SAMURAI·······································································
Y. Togano et al.

202

Tests of the Advanced Implantation Detector Array (AIDA) at RIBF ·······························································
C. Griffin, T. Davinson et al.

203

CCJ operations in 2015·····················································································································
S. Yokkaichi et al.

204

Computing and network environment at the RIKEN Nishina Center································································
T. Ichihara et al.

205

Ⅲ. RESEARCH ACTIVITIES II (Material Science and Biology)

1. Atomic and Solid State Physics (Ion)
Site change of hydrogen owing to lattice distortion in Nb alloys·····································································
C. Sugi et al.

207

Superconducting proximity effects in Nb/rare-earth bilayers··········································································
H. Yamazaki

208

Evaluation of single event transient error rate related to operation frequency on 64bit SOI micro processor··················
A. Maru et al.

209

2. Atomic and Solid State Physics (Muon)
μSR study of the Cu-spin correlation in heavily electron-doped high-Tc Tʼ-cuprates··············································
T. Adachi et al.

211

Magnetic ordering in YBa2Cu3O6··········································································································
S.S. Mohd-Tajudin

212

μSR study of an insulator near high-Tc honeycomb lattice superconductors························································
S. Shamoto and I. Watanabe

213

Investigation of magnetic ground states in mixed kagome systems (Rb1−x Csx)2Cu3SnF12 II·······································
T. Suzuki et al.

214µSR Result on Magnetic ground state of Ce1−x LaxT2Al10 (T = Ru, Os) ······························································
N. Adam et al.

215

μSR study on the Kondo semiconductor (Cex La1−x)Ru2Al10···········································································
N. Adam et al.

216

Disappearing of the Ir-ordered state in the Pyrochlore iridates (Nd,Ca)2Ir2O7 studied by μSR···································
R. Asih et al.

217

μSR investigation of novel magnetism in the 4d Heisenberg-Kitaev honeycomb compound α-RuCl3··························
Sungwon Yoon et al.

218

Investigation of the magnetic ground state of frustrated spin system Rb2Cu2Mo3O12··············································
S. Ohira-Kawamura et al.

219

Spin dynamics for p electrons in CsO2 and NaO2·······················································································
D.P. Sari et al.

220

μSR study of spin dynamics in Cu-based organic-inorganic hybrid systems························································
E. Suprayoga et al.

221

Study of frustrated antiferromagnetic states by μSR····················································································
M. Abdel-Jawad et al.

222

Antiferromagnetic ordering in organic π − d hybrids [Pd(tmdt)2]·····································································
R. Takagi et al.

223

Solute-vacancy clustering in Al-Mg-Si and Al-Si alloys···············································································
K. Nishimura et al.

224

Li-ion diffusion in Li-ion battery material LiFe1−x Mnx PO4············································································
I. Umegaki et al.

225

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CONTENTS

Development of RF cavity for MuSEUM experiment in a zero magnetic field·····················································
K.S. Tanaka

226

Development of magnetic shield for the MuSEUM experiment······································································
S. Kanda

227

Ultra-slow muon production at the RIKEN-RAL muon facility based on muonium emission from silica aerogel············
S. Okada et al.

228

Development of a slow muon detection system for a muon acceleration····························································
R. Kitamura

229

FAMU experiment: studies on the muon transfer process in a mixture of hydrogen and higher Z gas··························
A. Vacchi et al.

230

Development of mid-infrared laser for the measurement of muonic hydrogen atom hyperfine splitting energy···············
S. Aikawa et al.

231

3. Radiochemistry and Nuclear Chemistry
Production of neutron deficient Rf isotopes in 208Pb + 48,50Ti reactions·······························································
S. Goto et al.

233

Off-line experiments of isothermal gas chromatography for Zr and Hf tetrachlorides·············································
K. Shirai et al.

234

Adsorption behavior of No with a TTA chelate extractant from HF/HNO3 acidic solutions······································
Y. Fukuda et al.

235

Extraction behavior of Mo and W from sulfuric acid into Aliquat336 as model experiments for seaborgium (Sg)···········
A. Mitsukai et al

236

Solid-liquid extraction of Nb and Ta with Aliquat 336 resin from HF solutions for chemical experimentof element 105, Db ···················································································································
D. Sato et al.

237

Extraction behaviors of chloride complexes of Nb and Ta with triisooctyl amine for chemical experimentof dubnium (Db)······················································································································
R. Motoyama et al.

238

Development of an automated batch-type solid-liquid extraction apparatus and extraction of Zr, Hf, and Th
by triisooctylamine from HCl solutions for chemistry of element 104, Rf····················································
Y. Kasamatsu et al.

239

Solvent extraction of Zr and Hf using the online flow-type extraction apparatus for superheavy elements····················
Y. Kasamatsu et al.

240

Solvent extraction behavior of Zr and Hf with di(2-ethylhexyl)phosphoric acid for aqueous chemistry of Rf·················
R. Yamada et al.

241

99

Ru Mössbauer spectroscopy of Na-ion batteries of Na2RuO3 (II)···································································
K. Takahashi et al.

242

Quantitative study on metallofullerene separation by chemical reduction···························································
K. Akiyama et al.

243

Production cross sections of (d,x) reactions on natural platinum·····································································
M.U. Khandaker and H. Haba

244

Measurement of production cross sections of Re isotopes in the natW(d,x) reactions··············································
Y. Komori et al.

245

Alpha particle induced cross section measurements on natural and enriched Cd at 50 MeV·····································
F. Ditrói, S. Takács and H. Haba

246

Excitation function of α-induced reaction on natPd for 103Ag production·····························································
M. Aikawa et al.

247

Excitation functions of deuteron-induced reactions on natural nickel································································AR Usman, MU Khanda and H. Haba

248

Cross checking of monitor reactions at RIKEN AVF cyclotron using 50 MeV alpha particle beams···························
S.Takács et al.

249

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RIKEN Accel. Prog. Rep. 49 (2016)

4. Radiation Chemistry and Biology
The defect of non-homologous end joining substantially enhanced the focus formation of Rad51 after X-ray irradiation,
but not after heavy-ion irradiation··································································································
M. Izumi and T. Abe

251

Low-dose high-LET heavy ion-induced bystander signaling (II)·····································································
M. Tomita et al.

252

Effects of several LET conditions on the mutation isolation system in fruit flies··················································
K. Tsuneizumi and T. Abe

253

Development of a high-performance bioinformatics pipeline for rice exome sequencing········································
H. Ichida et al.

254

Molecular characterization of mutations induced in PLASTOCHRON2 by a heavy-ion beam in dry rice seeds···············
R. Morita et al.

255

Effect of Ar-ion beam irradiation on imbibed seed of rice·············································································
Y. Hayashi et al.

256

Relationship between early-flowering mutation and LET-Gy combination of ion beam irradiation in einkorn wheat········
K. Murai et al.

257

Improvement of DelMapper: software for deletion mapping of non-recombining region·········································
K. Ishii et al.

258

A new physical mapping of the Silene latifolia Y chromosome·······································································
Y. Kazama et al.

259

Sexual reproduction observed in the loss-of-apomixis mutants of guineagrass induced by heavy-ion beam irradiation·····
M. Takahara et al.

260

Induction of flower color mutants by heavy-ion irradiation to leaf blades of spray-mum ‘Southern Chelsea’·················Y. Tanokashira et al.

261

Production of mutant line with early flowering at a low temperature in spray-type chrysanthemum cultivar inducedby C-ion beam irradiation············································································································
K. Sakamoto et al.

262

Agronomic characteristics of new edible chrysanthemum cultivar ‘Yamaen K4’ induced by heavy-ion beam irradiation·····
S. Endo et al.

263

Isolation of dwarf mutants induced with C-ion beam irradiation in pea cultivar ‘‘Kishu-usui’’··································
Y. Kotani et al.

264

Robust strains isolated by heavy-ion beam irradiation and endurance screening in the green algae,
Haematococcus pluvialis·············································································································
T. Takeshita et al.

265

Particle beam radiation of the ectomycorrhizal basidiomycete Tricholoma matsutake that produces the prized,
but uncultivable, mushroom “matsutake”·························································································
H. Murata et al.

266

Microbeam divergence from glass capillaries compared with simulation for biological use·····································
T. Ikeda et al.

267

Ⅳ. OPERATION RECORDS
Program Advisory Committee meetings for nuclear physics and for materials and life experiments····························
K. Yoneda et al.

269

Beam-time statistics of RIBF experiments·······························································································
K. Yoneda et al.

270

Electric power condition of Wako campus in 2015·····················································································
E. Ikezawa et al.

271

Radiation safety management at RIBF···································································································
Kanenobu Tanaka et al.

272

RILAC operation····························································································································
E. Ikezawa et al.

274

AVF operations in 2015·····················································································································
T. Nakamura et al.

275

RIKEN Accel. Prog. Rep. 49 (2016)

CONTENTS

Present status of the liquid-helium supply and recovery system······································································
T. Dantsuka et al.

276

Present status of the BigRIPS cryogenic plant···························································································
K. Kusaka et al.

277

Maintenance of vacuum for accelerators·································································································
S. Watanabe et al.

278

Operation of fee-based activities by the industrial cooperation team·································································
A. Yoshida et al.

279

Operation of the tandem accelerator······································································································
T. Kobayashi and M. Hamagaki

280

Operation report on the ring-cyclotrons in the RIBF accelerator complex··························································
M. Nishida et al.

281

Ⅴ. EVENTS
CHEP2015 - 21st International Conference on Computing in High Energy and Nuclear Physics·······························
Y. Watanabe

283

TAN15 - 5th International Conference on the Chemistry and Physics of the Transactinide Elements···························
H. Haba284

The 9th Nishina School·····················································································································
H. Ueno and T. Kishida285

HIAT2015-13th International Conference on Heavy ion Accelerator Technology·················································
N. Sakamoto and O. Kamigaito

286

RIBF Users Meeting 2015··················································································································
N. Imai et al.

287

Quark Matter 2015··························································································································
Y. Akiba, H. Hamagaki and T. Hatsuda

288

Physics with Fragment Separators - 25th Anniversary of RIKEN Projectile Fragment Separator (RIPS25)···················
T. Kubo289

Ⅵ. ORGANIZATION AND ACTIVITIES OF RIKEN NISHINA CENTER(Activities, Members, Publications & Presentations)
1. Organization·······························································································································

291

2. Finances····································································································································

292

3. Staffing·····································································································································

293

4. Research publication·····················································································································

294

5. Management·······························································································································

294

6. International Collaboration··············································································································

300

7. Awards······································································································································

302

8. Brief overview of the RI Beam Factory·······························································································

303

Theoretical Research Division
Quantum Hadron Physics Laboratory······························································································

305

Theoretical Nuclear Physics Laboratory···························································································

315

Strangeness Nuclear Physics Laboratory··························································································

319

Sub Nuclear System Research Division
Radiation Laboratory·················································································································

322

Advanced Meson Science Laboratory······························································································

328

RIKEN-BNL Research Center······································································································

334

Theory Group···················································································································

335

Computing Group··············································································································

339

Experimental Group············································································································

346

CONTENTS

RIKEN Accel. Prog. Rep. 49 (2016)

RIKEN Facility Office at RAL······································································································

350

RIBF Research Division
Radioactive Isotope Physics Laboratory···························································································

357

Spin isospin Laboratory··············································································································

364

Nuclear Spectroscopy Laboratory··································································································

371

High Energy Astrophysics Laboratory·····························································································

375

Astro-Glaciology Research Unit····································································································

378

Research Group for Superheavy Element ·························································································

380

Superheavy Element Production Team······················································································

383

Superheavy Element Device Development Team··········································································

385

Nuclear Transmutation Data Research Group·····················································································

387

Fast RI Data Team··············································································································

388

Slow RI Data Team·············································································································

390

Muon Data Team···············································································································

391

High-Intensity Accelerator R&D Group···························································································

392

High-Gradient Cavity R&D Team···························································································

393

High-Power Target R&D Team·······························································································

394

Accelerator Group····················································································································

395

Accelerator R&D Team········································································································

396

Ion Source Team················································································································

398

RILAC Team····················································································································

400

Cyclotron Team·················································································································

401

Beam Dynamics & Diagnostics Team·······················································································

404

Cryogenic Technology Team··································································································

406

Infrastructure Management Team····························································································

407

Instrumentation Development Group······························································································409

SLOWRI Team·················································································································

410

Rare RI-ring Team··············································································································

414

SCRIT Team····················································································································

418

Research Instruments Group········································································································

421

BigRIPS Team··················································································································

422

SAMURAI Team···············································································································

426

Computing and Network Team·······························································································

428

Detector Team···················································································································

430

Accelerator Applications Research Group·························································································

433

Ion Beam Breeding Team·····································································································434

RI Applications Team··········································································································

438

User Liaison and Industrial Cooperation Group··················································································

444

RIBF User Liaison Team (User Support Office)···········································································

445

Industrial Cooperation Team··································································································

446

Safety Management Group··········································································································

448

Partner Institution····························································································································

451

Center for Nuclear Study, Graduate School of Science, The University of Tokyo···········································

452

Center for Radioactive Ion Beam Sciences, Institute of Natural Science and Technology, Niigata University··········

465

Wako Nuclear Science Center, IPNS (Institute for Particle and Nuclear Studies),
KEK (High Energy Accelerator Research Organization)·································································

469

Events (April 2015 - March 2016)········································································································

471

Press Releases (April 2015 - March 2016)·······························································································

472

Ⅶ. LIST OF PREPRINTS
List of Preprints (April 2015 - March 2016)·····························································································

473

Ⅷ. LIST OF SYMPOSIA, WORKSHOPS & SEMINARS
List of Symposia & Workshops (April 2015 - March 2016)···········································································

477

List of Seminars (April 2015 - March 2016)·····························································································

479