Ⅳ. OPERATION RECORDS
RIKEN
Accel. Prog. Rep. 56 (2023)

RIKEN Accel. Prog. Rep. 56 (2023)

Program Advisory Committee meetings for nuclear physics and formaterials and life sciences
H. Ueno ∗1
There are two Program Advisory Committees(PACs) that are responsible for reviewing submitted
proposals in the ﬁelds of nuclear physics (NP-PAC)
and materials and life science (ML-PAC). The NPPAC is co-organized by the RIKEN Nishina Center(RNC), the Center for Nuclear Study (CNS), the University of Tokyo, and the Wako Nuclear Science Center (WNSC), Institute of Particle and Nuclear Studies(IPNS), KEK. The NP-PAC reviews experimental programs at RI Beam Factory (RIBF), whereas the MLPAC reviews those at the Rutherford Appleton Laboratory (RAL) and RIBF.
NP-PACThe 23rd NP-PAC meeting was held in a hybrid format on December 5–7, 2022 at 9:00–18:30 JST,1) where40 proposals were submitted and reviewed. One letterof-intent was also submitted. For the ﬁrst time in threeyears, the committee members and the experiment representatives participated in a face-to-face meeting, although the audience participated online. Proposals
were evaluated on the basis of ﬁve grades: S, A, B,C, and D. Those with a grade of B or higher were approved, of which those with a rating of S or A will begiven priority for beamtime allocation. Table 1 summarizes the outcome of the 23rd NP-PAC meeting.
The members of the 23rd NP-PAC meeting were
M. J. G. Borge (Chair, Consejo Superior de Investigaciones Cientíﬁcas), S. Grevy (Centre dÉtudes Nucléaires de Bordeaux Gradignan), M. Dasgupta (TheAustralian National Univ.), J. Dilling (Ork RidgeNational Laboratory), M. Gorska (GSI Darmstadt),
T. Kawabata (Osaka Univ.), M. Matsuo (NiigataUniv.), R. Zegers (Michigan State Univ.), N. Aoi (Osaka Univ.), R. Charity (Washington Univ. in St.
Louis), G. Martínez-Pinedo (Technische Univ. Darmstadt / GSI), I. Moore (Univ. Jyväskylä), T. Saito(RIKEN), P. J. Woods (Univ. Edinburgh), A. Vitturi(Univ. Padova), and X. Zhou (Chinese Academy ofSciences).
ML-PACThe 23rd ML-PAC meeting was held in January
2023.2) At this meeting, only proposals for the use ofthe RIBF were solicited, and not proposals for the useof muon beams at RAL. The one submitted RIBF proposals was reviewed, where the review was conducted
through email, in consideration of the number of applications. For experimental proposals using RIBF, the∗1

Table 1. Summary of the outcome of the 23rd NP-PAC
meeting. The sum of the proposals ranked with S andA is listed in the “approval” columns.
23rd NP-PAC (December 5–7, 2022)
beam time (days)
proposal number
requestapproval

requestapproval

RILAC (GARIS, ...) 0
AVF (CRIB, ...)
3RRC (KISS, ...)
4
BigRIPS/ZD
25
SHARAQ/OEDO
1Rare-RI Ring
1SAMURAI
601310114032.5
41151.85
617.5
63.5

01118452.5
925.5( BigRIPS-relatedTotal

1620

238.85312.35821113340)

same evaluation grade as for NP-PAC was adopted.
The outcome of the meeting is summarized in Table 2.
The members of the 23rd ML-PAC meeting were
A. D. Hillier (Chair, RAL-ISIS), T. Adachi (SophiaUniv.), J. Kishine (The Open Univ.
Japan),
Y. Kobayashi (The Univ. Electro-Communications),
Y. Miyazawa (Yamagata Univ.), K. Shimomura (KEK),
T. Takayanagi (Saitama Univ.), Z. Qin (CAS-IMP),and I. Yamauchi (Saga Univ.).
Table 2. Summary of the outcome of the 23rd ML-PAC
meeting. For the RIBF proposals, the sum of the proposals ranked with S and A is listed in the “approval”
columns.
23rd ML-PAC (January 2023)
beam time (days)
proposal number
request
RAL
RIBF
AVF
Total

approval

requestapproval—no call for proposals—
11

1
1

6
6

4
4

References

1) http://www.nishina.riken.jp/RIBF/NP-PAC/ .
2) http://www.nishina.riken.jp/RIBF/ML-PAC/ .

RIKEN Nishina Center- 203 -

1