bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of electrostatic doping on carrier concentration and mobility in InAs nanowires
Authors: Prete Domenic , Demontis Valeria , Zannier Valentina , Rodriguez-Douton Maria Jesus , Guazzelli Lorenzo , Beltram Fabio , Sorba Lucia , Rossella Francesco 
Published: December 2020

Abstract
We fabricate dual-gated electric double layer (EDL) field effect transistors based on InAs nanowires gated with an ionic liquid, and we perform electrical transport measurements in the temperature range from room temperature to 4.2 K. By adjusting the spatial distribution of ions inside the ionic liquid employed as gate dielectric, we electrostatically induce doping in the nanostructures under analysis. We extract low-temperature carrier concentration and mobility in very different doping regimes from the analysis of current–voltage characteristics and transconductances measured exploiting global back-gating. In the liquid gate voltage interval from −2 to 2 V, carrier concentration can be enhanced up to two orders of magnitude. Meanwhile, the effect of the ionic accumulation on the nanowire surface turns out to be detrimental to the electron mobility of the semiconductor nanostructure: the electron mobility is quenched irrespectively to the sign of the accumulated ionic species. The reported results shine light on the effective impact on crucial transport parameters of EDL gating in semiconductor nanodevices and they should be considered when designing experiments in which electrostatic doping of semiconductor nanostructures via electrolyte gating is involved.
Another decade of photoacoustic imaging
Authors: Das Dhiman , Sharma Arunima , Rajendran Praveenbalaji , Pramanik Manojit 
Published: December 2020

Abstract
Photoacoustic imaging—a hybrid biomedical imaging modality finding its way to clinical practices. Although the photoacoustic phenomenon was known more than a century back, only in the last two decades it has been widely researched and used for biomedical imaging applications. In this review we focus on the development and progress of the technology in the last decade (2011–2020). From becoming more and more user friendly, cheaper in cost, portable in size, photoacoustic imaging promises a wide range of applications, if translated to clinic. The growth of photoacoustic community is steady, and with several new directions researchers are exploring, it is inevitable that photoacoustic imaging will one day establish itself as a regular imaging system in the clinical practices.
Quantum phase diagrams of matter-field Hamiltonians II: Wigner function analysis
Authors: López-Peña R , Cordero S , Nahmad-Achar E , Castaños O 
Published: December 2020

Abstract
Non-classical states are of practical interest in quantum computing and quantum metrology. These states can be detected through their Wigner function negativity in some regions. We show that the surfaces of minimum fidelity or maximum Bures distance constitute a signature of quantum phase transitions. Additionally the behaviour of the Wigner function associated to the field modes carry the information of both, the entanglement properties between matter and field sectors, and the regions of the parameter space where the quantum phase transitions take place. A finer classification for the continuous phase transitions is obtained through the computation of the surface of maximum Bures distance.
Effect of Fock terms on nuclear symmetry energy based on Lorentz-covariant decomposition of nucleon self-energies
Authors: Miyatsu Tsuyoshi , Cheoun Myung-Ki , Ishizuka Chikako , Kim K. S. , Maruyama Tomoyuki , Saito Koichi 
Published: December 2020

Abstract
Using the Lorentz-covariant decomposition of nucleon self-energies with relativistic mean-field approximation, we study the effect of Fock terms on the density dependence of nuclear symmetry energy, E
sym. It is found that the Fock contribution suppresses the potential part of E
sym at higher densities, and the constraint from the heavy-ion collision data is in favor of the present result including exchange terms with the cutoff parameters given by the CD-Bonn potential. In addition, not only the isovector-vector (ρ) meson but also the isoscalar (σ, ω) and π mesons give influence on the potential part of E
sym through the exchange diagram.
Results on 82Se 2νββ with CUPID-0 Phase I
Authors: Pagnanini L , Azzolini O , Beeman J W , Bellini F , Beretta M , Biassoni M , Brofferio C , Bucci C , Capelli S , Cardani L , Carniti P , Casali N , Chiesa D , Clemenza M , Cremonesi O , Cruciani A , Dafinei I , Domizio S Di , Ferroni F , Gironi L , Giuliani A , Gorla P , Gotti C , Keppel G , Martinez M , Nagorny S , Nastasi M , Nisi S , Nones C , Orlandi D , Pallavicini M , Pattavina L , Pavan M , Pessina G , Pettinacci V , Pirro S , Pozzi S , Previtali E , Puiu A , Rusconi C , Schäffner K , Tomei C , Vignati M , Zolotarova A S 
Published: December 2020

Abstract
The nucleus is an extraordinarily complex object where fundamental forces are at work. The solution of this many-body problem has challenged physicists for decades: several models with complementary virtues and flaws have been adopted, none of which has a universal predictive capability. Double beta decay is a second order weak nuclear decay whose precise measurement might steer fundamental improvements in nuclear theory. Its knowledge paves the way to a much better understanding of many body nuclear dynamics and clarifies, in particular, the role of multiparticle states. This is a useful input to a complete understanding of the dynamics of neutrino-less double beta decay, the chief physical process whose discovery may shed light to matter-antimatter asymmetry of the universe and unveil the true nature of neutrinos. Here, we report the study of 2νββ-decay in 82Se with the CUPID-0 detector, an array of ZnSe crystals maintained at a temperature close to ‘absolute zero’ in an ultralow background environment. Thanks to the unprecedented accuracy in the measurement of the two electrons spectrum, we prove that the decay is dominated by a single intermediate state. We obtain also the most precise value for the 82Se 2νββ-decay half-life of

T

1
/
2

2
ν

=

[

8.6

+
0.2

−
0.1

]

×

10

19

yr.
Search for neutrino-less double beta decay of 48Ca-CANDLES-
Authors: Umehara S. , Nomachi M. , Kishimoto T. , Ajimura S. , Takemoto Y. , Tetsuno K. , Takihira K. , Matsuoka K. , Trang V. T. T. , Yoshida S. , Shokati M. , Li X. , Batpurev T. , Khai B. T. , Lee K. , Akutagawa K. , Soberi F. , Mizukoshi K. , Yamamoto K. , Tamagawa Y. , Ogawa I. , Nakajima K. , Tozawa M. , Shimizu K. , Shimizu K. , Mori Y. , Ikeyama Y. , Ozawa K. , Matsuoka K. , Iida T. , Fushimi K. , Hazama R. , Noithong P. , Suzuki K. , Ohsumi H. 
Published: December 2020

Abstract
We have studied the neutrino-less double beta decay(0νββ) of 48Ca with the CANDLES III system, which consists of CaF2(pure) scintillators. Rejection analyses for background events from radioactive contaminations in the CaF2(pure) scintillators were effective to reduce backgrounds in Qββ
-value region. As the results, no events were observed in the region for the data of 131 days × 86 kg. It gave a lower limit 6.2 × 1022 year (90 % C.L.) for the half-life of 0νββ of 48Ca. For higher sensitive measurement of 48Ca 0νββ, we have developed new techniques for 48Ca enrichment and CaF2 scintillating bolometer. In this paper, we will also show current status of these techniques.
Performance of the OEDO beamline
Authors: Hwang J W , Michimasa S , Yamada K , Ota S , Dozono M , Imai N , Yoshida K , Yanagisawa Y , Kusaka K , Ohtake M , Matsushita M , Ahn D S , Beliuskina O , Chiga N , Chikaato K , Fukuda N , Hayakawa S , Ideguchi E , Iribe K , Iwamoto C , Kawase S , Kawata K , Kitamura N , Masuoka S , Miyatake H , Nagae D , Nakajima R , Nakamura T , Nakano K , Omika S , Otsu H , Sakurai H , Schrock P , Shimizu H , Shimizu Y , Sumikama T , Sun X , Suzuki D , Suzuki H , Takaki M , Takechi M , Takeda H , Takeuchi S , Teranishi T , Tsunoda R , Wang H , Watanabe Y , Watanabe Y X , Wimmer K , Yako K , Yamaguchi H , Yang L , Yoshida H , Shimoura S 
Published: December 2020

Abstract
The OEDO (Optimized Energy Degrading Optics for RI beam) beamline has been developed to obtain low-energy (10 – 50 MeV/u) RI beams by slowing down the secondary beams at RIBF, RIKEN. Such beams are useful probes to investigate nuclear structure by means of nucleon transfer and Coulomb excitation reactions. The beamline is designed to produce a well-focused beam of small energy spread with the help of the angle-tuneable wedge degrader and the radio-frequency deflector. The commissioning and first physics experiments using the OEDO beamline were carried out in 2017. OEDO successfully provided the energy-degraded beams of Se, Zr, and Pd. Its performance including the optics and transmission was evaluated using those experimental data and it functions properly as designed. We expect that our novel beamline shed a light on the experimental approaches involving nuclear reactions at several tens of MeV/u to expand our knowledge of nuclei far beyond the line of stability.
Nuclear Symmetry Energies at Supra-saturation Densities Extracted from Observations of Neutron Stars and Gravitational Waves
Authors: Li Bao-An , Xie Wen-Jie , Zhang Nai-Bo 
Published: December 2020

Abstract
The high-density behavior of nuclear symmetry energy is the most uncertain part of the Equation of State (EOS) of dense neutron-rich nucleonic matter. It has significant ramifications in understanding properties of nuclear reactions induced by rare isotopes, neutron stars and gravitational waves from various sources. To infer the underlying EOS of dense neutron-rich nuclear matter from observables of neutron stars is the longstanding neutron star inverse-structure problem. To make progress in solving this problem, we advanced two inversion approaches: (1) the direct inversion in the three-dimensional high-density EOS parameter space and (2) Bayesian inference of six EOS parameters statistically. Neutron star observational data obtained so far, especially their radii from analyzing gravitational waves (e.g., via the tidal deformability) from GW170817 and X-rays from quiescent low-mass X-ray binaries can already help constrain significantly the nuclear EOS up to about twice the saturation density of nuclear matter. In particular, the nuclear symmetry energy at twice the saturation density of nuclear matter E
sym(2ρ
0) is found to be

39.2

+
12.1

−
8.2

MeV at 68% confidence level.
Experimental Challenges of the First Mass Measurement Campaign at the Rare-RI Ring
Authors: Naimi S. , Li H.F. , Abe Y. , Yamaguchi Y. , Nagae D. , Suzaki F. , Wakasugi M. , Arakawa H. , Dou W. , Hamakawa D. , Hosoi S. , Inada Y. , Inomata K. , Kajiki D. , Kobayashi T. , Sakaue M. , Yokoya K. , Yamaguchi T. , Kagesawa R. , Kamioka D. , Moriguchi T. , Mukai M. , Ozawa A. , Ota S. , Kitamura N. , Masuaoka S. , Michimasa S. , Ahn D. S. , Baba H. , Fukuda N. , Shimizu Y. , Suzuki H. , Takeda H. , Fu C.Y. , Ge Z. , Suzuki S. , Wang Q. , Wang M. , Litvinov Yu.A. , Lorusso G. , Uesaka T. 
Published: December 2020

Abstract
With the recent commissioning of the Rare-RI Ring (R3), nuclear mass measurement of rare isotopes (RIs) produced at the RI Beam Factory (RIBF) at RIKEN has become possible. The R3 spectrometer is based on the Isochronous Mass Spectrometry technique that allows for reaching a mass measurement precision of 10−6 within less than 1 ms. With the newly established self-triggered individual injection method, R3 specialized in mass measurements of extremely short-lived nuclei with low production yields.
In this paper, we report the first mass measurement campaign conducted at the R3 addressing nuclei in the vicinity of N=50 and N=82 neutron magic numbers, with a particular focus on the challenges of this new facility.
Shell-model studies of the astrophysical rp-process reactions 34S(p,γ)35Cl and 34
g,m

Cl(p,γ)35Ar
Authors: Richter W. A. , Brown B. Alex , Longland R. , Wrede C. , Fry C. , Denisenkov P. , Herwig F. , Kurtulgil D. , Pignatari M. , Reifarth R. 
Published: December 2020

Abstract
The two rp-reactions 34S(p,γ)35Cl and 34
g,m

Cl(p,γ)35Ar were studied via a shell-model approach. At energies in the resonance region near the proton-emission threshold many negative-parity states appear. We present results of calculations in a full (0+1)ℏω model space which addresses this problem. Energies, spectroscopic factors and proton-decay widths are calculated for input into the reaction rates. Comparisons are also made with a recent experimental determination of the reaction rate for the 34S(3He,d)35Cl reaction. The thermonuclear 34
g,m

Cl(p,γ)35Ar reaction rates are unknown because of a lack of experimental data. The rates for transitions from the ground state of 34Cl as well as from the isomeric first excited state of 34Cl are explicitly calculated taking into account the relative populations of the two states.
Recent advances in the description of reactions involving exotic nuclei
Authors: Capel Pierre 
Published: December 2020

Abstract
In this contribution to the proceedings of the International Nuclear Physics Conference 2019, I review recent developments made in reaction models used to analyse data measured at radioactive-ion beam facilities to study exotic nuclear structures. I focus in particular on reactions like elastic scattering and breakup, which are used to study halo nuclei. Although these peculiar nuclei challenge usual nuclear-structure models, some can now be computed ab initio. This brief review illustrates the progress made in nuclear-reaction theory in the last few years to improve the description of the projectile within reaction models. I dedicate this contribution to the memory of Mahir Hussein, who has significantly contributed to this field and who passed away in May this year.
Fission rate of excited nuclei at variable friction in the energy diffusion regime
Authors: Chushnyakova M V , Gontchar I I 
Published: December 2020

Abstract
Presently, it is well established that fission of excited nuclei is a dynamical process being a subject of fluctuations and dissipation. In the literature, there are indications that, at the compact nucleus shapes, the strength of nuclear friction is significantly reduced in comparison with the prediction of the one-body approach. Thus, one can expect that at small deformations the nuclear fission process occurs in the so-called “energy diffusion regime”. The purpose of our present work is to compare an approximate analytical formula for the fission rate in this regime with the quasistationary numerical rate which is exact within the statistical errors. Our calculations demonstrate relatively good agreement between these two rates provided the friction parameter is deformation independent. If one accounts for its deformation dependence, the agreement becomes significantly poorer.
Isomeric cross section ratios data as a test for codes descriptive of nuclear reactions
Authors: Chuvilskaya T V 
Published: December 2020

Abstract
Investigations of isomeric cross-section ratios of the reactions 187Re(a,n)190mgIr, 194Pt(a,n)197mgHg and 41K(a,n)44mgSc in the energy range 18 – 32 MeV are carried out using off-beam measurements of induced activity of members of the isomeric pair. Analysis of the obtained ICSR data is performed using the codes EMPIRE-3 and TALYS. The reliability of these advanced data-containing codes is analyzed. The results of the measurements of the isomeric cross section ratios are proved to be a promising test of the codes and their capability to reproduce angular momentum dynamics of the discussed and related reactions.
Isospin triplet A=12: search for states with enhanced radii
Authors: Demyanova A S , Danilov A N , Ogloblin A A , Starastsin V I , Dmitriev S V , Sergeev V M , Goncharov S A , Belyaeva T L , Maslov V A , Sobolev Yu G , Penionzhkevich Yu E , Trzaska W H , Khlebnikov S V , Tyurin G P , Burtebaev N , Janseitov D , Gurov Yu B 
Published: December 2020

Abstract
Two independent methods: Asymptotic Normalization Coefficients (ANC) and Modified Diffraction Model (MDM) were applied to new and existing experimental data to search for states with enhanced radii in isobaric analogue states (IAS) of 12B and 12N. The ANC analysis of the 11B(d,p)12B reaction at Ed = 21.5 MeV has confirmed neutron halo existence for two states of 12B: 2−, 1.67 MeV and 1−, 2.62 MeV [1]. Some new results were obtained for higher excited states: halo-like states were observed for 0+, 2.72 MeV and 3−, 3.39 MeV states. It should be mentioned that the last one is unbound state, which is 19 keV above the neutron emission threshold and in both states last neutron has a non-zero orbital momentum (ln=1 and ln=2 correspondingly). We propose to use MDM to study isobaric analogue states of 12B in the mirror 12N nucleus and apply it to analyze the (3He,t) reaction data. The existing in the literature data are not completed enough to make definite conclusion about halo in the 2− and 1− states of 12N. This fact simulated us to carry out a new experiment on the 12C(3He,t)12N reaction at the end of 2018. The measurements were conducted at the University of Jyväskylä (Finland) using the K130 cyclotron to produce a 3He beam at E(3He)=40 MeV. The differential cross sections of the 12C(3He,t)12N reaction were measured in the c.m. angular range 8°–70°. Preliminary results for angular distributions are obtained. MDM analysis of preliminary (3He,t) experimental data is done.
Studies of K−-nuclei interactions at low-energies by AMADEUS
Authors: Del Grande R. , Bazzi M. , Bragadireanu A. M. , Bosnar D. , Cargnelli M. , Clozza A. , Curceanu C. , De Paolis L. , Fabbietti L. , Ghio F. , Guaraldo C. , Iliescu M. , Iwasaki M. , Levi Sandri P. , Marton J. , Miliucci M. , Moskal P. , Okada S. , Piscicchia K. , Ramos A. , Scordo A. , Silarski M. , Sirghi D. L. , Sirghi F. , Skurzok M. , Spallone A. , Vazquez Doce O. , Widmann E. , Wycech S. , Zmeskal J. 
Published: December 2020

Abstract
The AMADEUS collaboration is providing unique experimental information on the low-energy strong interaction between K− and nucleons exploiting the low momentum K− (pK ∼ 127 MeV/c) produced at the DAΦNE collider and using the KLOE detector as active target. The absorption of the K− in light nuclei (H, 4He, 9Be and 12C) are investigated and hyperon-pion/hyperon-nucleons, emitted in the final state, are reconstructed. In the present work the results obtained from the study of Λπ−, Ap and At correlated production will be presented.
Inclusive breakup measurements of the 7Li+ 119Sn reaction
Authors: Fernández-García J. P. , Alvarez M. A. G. , Cherubini S. , Di Pietro A. , D’Agata G. , Fernández B. , Figuera P. , Fisichella M. , Giulino M. , La Cognata M. , Lamia L. , Lattuada M. , Lei J. , Moro A. M. , Pizzone R. G. , Santonicito D. , Sparta R. , Tumino A. , Shotter A. C. , Zadro M. 
Published: December 2020

Abstract
We present preliminary data of elastic scattering and inclusive breakup cross sections for the 7Li+ 119Sn reaction, recently measured at the Laboratori Nazionali del Sud (LNS-INFN) (Catania, Italy) at energies around the Coulomb barrier (E
lab
= 21.2 and 26.5 MeV). The experimental data have been analyzed under the Optical Model and Continuum-Discretized Coupled-Channels methods.
Modelling nuclei far from stability with a multichannel approach
Authors: Fraser P R , Amos K , Canton L , Karataglidis S , van der Knijff D 
Published: December 2020

Abstract
Recently, new high-precision data reconfirmed the existence of narrow resonances in the p+14O cross section, first predicted by the multi-channel algebraic scattering (MCAS) theory of light-mass, low-energy scattering and later found by other experimental means. Prompted by this and a decade of extension to the method, we have updated the original MCAS study.
Additionally, we use MCAS to interpret the low-energy spectrum of 19 F, which has an interesting structure that appears to stem from clusterisation, and we compare the results of several types. As only early, small-basis shell model investigations of this spectrum exist, we also perform a complete (0 + 2)ħω calculation.
MCAS is well suited to these studies, having the advantage of accounting for the Pauli principle between the nucleons of the clusters, and so spurious states of the compound nucleus are removed.
Study of spin-isospin response of 11Li neutron-drip-line nucleus with PANDORA
Authors: Stuhl L. , Sasano M. , Gao J. , Hirai Y. , Yako K. , Wakasa T. , Ahn D. S. , Baba H. , Chilug A. I. , Franchoo S. , Fujino Y. , Fukuda N. , Gibelin J. , Hahn I. S. , Halász Z. , Harada T. , Harakeh M. N. , Inomoto D. , Isobe T. , Kasahara H. , Kim D. , Kiss G. G. , Kobayashi T. , Kondo Y. , Korkulu Z. , Koyama S. , Kubota Y. , Kurihara A. , Liu H. N. , Matsumoto M. , Michimasa S. , Miki H. , Miwa M. , Motobayashi T. , Nakamura T. , Nishimura M. , Otsu H. , Panin V. , Park S. , Saito A. T. , Sakai H. , Sato H. , Shimada T. , Shimizu Y. , Shimoura S. , Spiridon A. , Stefanescu I. C. , Sun X. , Sun Y. L. , Suzuki H. , Togano Y. , Tomai T. , Trache L. , Tudor D. , Uesaka T. , Yamada H. , Yang Z. , Yasuda M. , Yoneda K. , Yoshida K. , Zenihiro J. , Zhang N. 
Published: December 2020

Abstract
The spin-isospin responses of the 11Li drip-line nucleus has been measured. Preliminary results of the 11Li(p, n)11Be experiment in inverse kinematics at RI Beam Factory (RIBF) of RIKEN Nishina Center are presented including the observation of 1n, 2n, t, d, 2α and 6He+α decay channels of 11Be reaction product. Details of the experimental setup based on PANDORA (Particle Analyzer Neutron Detector Of Real-time Acquisition) low-energy neutron detector and the SAMURAI large-acceptance magnetic spectrometer are described.
Structures and production cross sections of p-shell Lambda-hypernuclei calculated with multi-configuration shell model
Authors: Umeya Atsushi , Motoba Toshio , Itonaga Kazunori 
Published: December 2020

Abstract
The high-resolution data of the 10B (e, e′K
+)

Λ

10

Be experiment done at the Jefferson National Laboratory reported a new bump, which cannot be explained by the DWIA calculation by employing the conventional shell-model wave functions. To describe the new bump, we have extended the model space by introducing a new configuration with 1ħω excitation for both nuclear and hyperon states. We show that the DWIA calculation by using the extended shell-model wave functions successfully explains the new bump for the first time, and that the p-state Λ in the lower molecular orbit plays an important role in the appearance of the new bump.
19B isotope as a 17B-n-n three-body cluster close to unitary limit
Authors: Carbonell J. , Hiyama E. , Lazauskas R. , Marqués F. M. 
Published: December 2020

Abstract
We describe 19B in terms of a 17B-n-n three-body system, where the two-body subsystems 17B-n and n-n are unbound (virtual) states close to the unitary limit. The energy of 19 B ground state is well reproduced and two low-lying resonances are predicted. Their eventual link with the Efimov physics is discussed. This model can be extended to describe the recently discovered resonant states in 20,21B.
SRC based model for the nuclear structure
Authors: Dalal Ranjeet 
Published: December 2020

Abstract
The existence of SRCs inside nuclei has been verified by many experiments [1-3] and is considered to be underlying reason behind the EMC effect [4]. After discussion of various motivation for the new approach, a SRC based nuclear structure model is proposed. The model is shown to be equivalent to the liquid drop model for the consideration of the nuclear binding energy and its equivalence to the cluster model for specific applications is also highlighted. The proposed model provides many new insights about various nuclear observables and some of them are discussed qualitatively.