Article
Physics, Nuclear
Xin Yin, Yumin Zhao
Summary: In this study, the patterns exhibited by integrated neutron-proton interactions (V-NP) were investigated. The study found systematic differences among particle-particle, hole-hole, hole-particle, and particle-hole cases. A simple formula for V-NP was proposed, which showed approximate linearity with NnNp. The observed ordering of V-NP, with particle-particle case being the largest, hole-hole case being in between, and particle-hole and hole-particle cases being the smallest, was explained in terms of the dominant part of V-NP originating from symmetry energy and refinement involving the shell correction in the mass formulas.
Article
Physics, Nuclear
Amandeep Kaur, Nitin Sharma, Manoj K. Sharma
Summary: The analysis of even mass Fm242-260 isotopes using a preformed cluster model based on quantum mechanical fragmentation theory reveals differences in fission fragment mass distributions under different deformation configurations, with discrepancies in the calculated SF half-lives compared to experimental data.
Article
Multidisciplinary Sciences
Kai Wei, Wei Ji, Changbo Fu, Arne Wickenbrock, Victor V. Flambaum, Jiancheng Fang, Dmitry Budker
Summary: Experimental search for exotic spin-dependent forces was conducted and limits on coupling constants were established, which are more stringent than astronomical and cosmological limits on the coupling between new gauge bosons and standard model particles.
NATURE COMMUNICATIONS
(2022)
Article
Engineering, Biomedical
Bleddyn Jones
Summary: A practical neutron energy dependent RBE model has been developed based on the relationship between mono-energetic neutron energy and its likely recoil proton energy. The model uses LET values of recoil protons to modify radiosensitivities and predict RBE values. Experimental studies suggest this model could have applications in ion beams and radioprotection.
PHYSICS IN MEDICINE AND BIOLOGY
(2021)
Article
Astronomy & Astrophysics
M. B. Albino, R. Fariello, F. S. Navarra
Summary: This study updated previous calculations, compared the results with recent data, and found that repulsive interactions are essential for reproducing experimental information. The equation of state remains compatible with all astrophysical observations, but the parameter window is now narrower.
Article
Astronomy & Astrophysics
Daniel A. Godzieba, David Radice, Sebastiano Bernuzzi
Summary: Motivated by the recent discovery of a compact object in the binary merger GW190814, this study revisits the question of the maximum mass of neutron stars. By using a Markov Chain Monte Carlo approach, the researchers generated millions of equations of state to infer upper bounds on the maximum neutron star mass. The study shows that these upper bounds are only dependent on relativity and causality, and not influenced by nuclear physics uncertainties, offering constraints on the equation of state of dense matter. The implications for GW190814 are also discussed.
ASTROPHYSICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
Soonchul Choi, Tsuyoshi Miyatsu, Myung-Ki Cheoun, Koichi Saito
Summary: By considering terrestrial experiments and recent astrophysical observations, constraints are imposed on the equation of state for isospin-asymmetric nuclear matter. The softness of the nuclear EoS due to the existence of hyperons in the core plays an important role in restricting physical quantities and the curvature parameter of nuclear symmetry energy can be limited through nuclear and astrophysical calculations.
ASTROPHYSICAL JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Yusuke Okuno, Charles D. Schwieters, Zhilin Yang, G. Marius Clore
Summary: This study explores distinct properties of solvent paramagnetic relaxation enhancement (sPRE) arising from nitroxide-based cosolutes and provides new insights into the interpretation of sPRE and sPRE-derived OENS. Four different approaches for evaluating OENS are discussed, which enable the investigation of both long-range and short-range electrostatic interactions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Astronomy & Astrophysics
Luiz L. Lopes, Debora P. Menezes
Summary: This work presents an extensive study on the nature of the mass-gap object in the GW190814 event, investigating various possibilities including hadronic matter, quark matter, and hybrid matter. The research results suggest that the object can be any of the three possibilities depending on the parameters, with varying probabilities.
ASTROPHYSICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Joanna Niziol, Krzysztof Ossolinski, Brian P. Tripet, Valerie Copie, Adrian Arendowski, Tomasz Ruman
Summary: Metabolic profiling of urine samples from kidney cancer patients and healthy volunteers using H-1 NMR and LDI MS identified potential urine biomarkers and significantly different mass spectral features, providing a framework for biomarker discovery in kidney cancer.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2021)
Article
Materials Science, Multidisciplinary
N. Castin, D. Terentyev, A. Bakaev, A. Stankovskiy, G. Bonny
Summary: The study evaluates the suitability and equivalence of irradiation conditions on test facilities for nuclear fusion reactor materials qualification, focusing on predicted microstructural patterns of Eurofer97 steels and tungsten. It compares simulation results among various fusion reactor operation conditions and test irradiation facilities.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Physics, Nuclear
N. Kaiser
Summary: This study derives the first-order contributions of subleading chiral three-nucleon interactions to the energy per particle of nuclear matter, utilizing analytical methods and evaluating closed-loop diagrams. Various short-range and long-range terms are examined using different mathematical approaches.
Article
Physics, Nuclear
P. Yin, X. L. Shang, J. N. Hu, J. Y. Fu, E. Epelbaum, W. Zuo
Summary: We investigate the pairing properties of state-of-the-art semilocal coordinate-space and semilocal momentum-space regularized chiral interactions. We find weak regulator dependence and robust convergence in the 3SD1 and 1S0 pairing gaps, while chaotic behavior is observed for the 3PF2 results. In addition, discrepancies between the chiral interactions and the Av18 potential in the 3SD1 and 3PF2 channels suggest the need for further constraints on the nucleon-nucleon interactions in these channels at high energies. Furthermore, the different tensor force effects of the chiral interactions and the Av18 potential for the 3SD1 and 3PF2 pairing gaps indicate distinct tensor components in these interactions.
Article
Biochemistry & Molecular Biology
Cosimo Taiti, Giacomo Di Matteo, Mattia Spano, Vittorio Vinciguerra, Elisa Masi, Luisa Mannina, Stefania Garzoli
Summary: In this study, a metabolomic approach was applied to explore the metabolome of dried hop leaves, revealing a wide range of chemical components including volatile organic compounds, terpenic compounds, fatty acids, sugars, amino acids, organic acids, and alcohols.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Maria-Maddalena Schiavone, Yue Zhao, Hiroki Iwase, Hiroshi Arima-Osonoi, Shin-ichi Takata, Aurel Radulescu
Summary: The functionalized solid-state sulfonation process enhances the hydrophilicity of the amorphous regions of sPS, enabling proton conduction upon membrane hydration and increasing its potential as a candidate for proton exchange membrane applications. Doping the sulfonated sPS membrane with fullerenes improves its resistance to oxidative decomposition. This study investigates the relationship between the morphology of the hydrated domains and the proton conductivity in sulfonated sPS-fullerene composite membranes under different temperature and relative humidity conditions using small-angle neutron scattering, providing insights into the hydration and conductivity pathways of this material.
Article
Physics, Condensed Matter
Zhaoshi Dong, Chunwang Zhao, Hui Jiang, Jijun Li
PHYSICA B-CONDENSED MATTER
(2020)
Article
Physics, Nuclear
Y. Q. He, J. K. Ge, G. J. Fu, H. Jiang
Summary: This study focuses on the symmetry energy and the Wigner energy in the binding energy formula for atomic nuclei, using the double difference of experimental symmetry-Wigner energies to extract the I-2 symmetry energy and Wigner energy coefficients. The results suggest that the macroscopic isospin dependence of binding energies is well explained by the symmetry energy and the I(2) Wigner energy coefficients, with further consideration of the I-4 term not substantially improving the calculation result.
Article
Astronomy & Astrophysics
G. J. Fu, Calvin W. Johnson
Article
Physics, Nuclear
Hui Jiang, Yi-jie Zhou, Yang Lei, Jia-Jie Shen, Man Bao
Summary: Systematic calculations of low-lying energy levels, BE(2) transitions, and g factors of even-even tellurium isotopes with mass numbers from 128 to 140 were performed using the nucleon-pair approximation (NPA) of the shell model. The calculated results showed optimal agreement with experimental data. Differences in the evolution of B(E2; 2(1)(+) -> 0(1)(+)) values and g(2(1)(+)) factors were attributed to variations in neutron and proton excitations relative to the symmetry of N = 82.
Article
Physics, Nuclear
Yi-Fei Pan, Yi-Yuan Cheng, Yi Lu, Hui Jiang, Xian-Rong Zhou, Yu-Min Zhao
Summary: In this study, we investigate the robustness of pair structures for nuclear yrast states. Our results suggest that optimized pair structures remain the same for all states within a rotational band of a deformed nucleus. After backbending, the structure of the S pair remains approximately unchanged, whereas the structures of the non-S pairs change significantly.
Article
Physics, Nuclear
Yi-Heng Wu, Jing-Bin Lu, Zhen Ren, Tian-Jiao Gao, Pei-Yao Yang, Yan Hao, Guan-Jian Fu, Jian Li, Ke-Yan Ma, Xiao-Guang Wu, Yun Zheng, Cong-Bo Li
Summary: This article reports the new level scheme of the 91Nb nucleus, established by the reactions 82Se(14N, 5n) 91Nb and 76Ge(19F, 4n) 91Nb. The obtained results, based on shell-model calculations and experimental data, provide an explanation for the high spin states.
Article
Physics, Nuclear
Y. X. Yu, Y. Lu, G. J. Fu, Calvin W. Johnson, Z. Z. Ren
Summary: This study proposes an efficient truncation scheme for the configuration-interaction shell model (SM), which includes both deformation and pairing correlations and investigates states with good angular momentum through projection. The results show good agreement with full configuration-interaction SM calculations for low-lying states of transitional and rotational nuclei.
Article
Physics, Nuclear
Yi-Heng Wu, Jing-Bin Lu, Zhen Ren, Guan-Jian Fu, Jian Li, Ke-Yan Ma, Ying-Jun Ma, Xiao-Guang Wu, Yun Zheng, Cong-Bo Li, Jun Wen
Summary: Excited states of the 93Nb nucleus were studied through fusion-evaporation reactions, and the level structure was compared to a shell model calculation. The results showed different excitation mechanisms for different energy levels and the involvement of protons and neutrons in the excitation paths.
Article
Physics, Nuclear
J. J. Shen, H. Jiang, G. J. Fu
Summary: This study investigates the robustness of noncollective rotational behavior for nuclei with random two-body interactions in the nuclear shell model framework. It finds that the normal I(I + 1) behavior of average excitation energy of yrast states is universal for both even-nucleon and odd-nucleon systems in random samplings, but in some special cases an inverse noncollective rotational behavior is observed. These rotational behaviors remain robust even in the presence of random two-body interactions and realistic single-particle energies.
Article
Physics, Nuclear
G. J. Fu, Calvin W. Johnson
Summary: This paper models low-lying states of atomic nuclei using the nucleon-pair approximation of the shell model with three approaches to select collective nucleon pairs. The results show that different methods produce good descriptions for spherical, transitional, and deformed nuclei. The SDG pairs reproduce nuclear shape evolution in certain isotopes, while the SDGI-pair approximation is able to describe low-lying states in cases difficult to reach by conventional methods.
Article
Physics, Nuclear
G. J. Fu, Calvin W. Johnson, P. Van Isacker, Zhongzhou Ren
Summary: Elliott's SU(3) model serves as the foundation for describing rotational motion in atomic nuclei using the shell model. By constructing a sufficient number of collective S, D, G... pairs and optimizing their structure, SU(3) symmetry can be realized in a truncated shell-model space. The mapping from fermionic SU(3) model to systems with bosons sheds light on the existence of a decoupled collective subspace in terms of S, D, G... pairs.
Article
Physics, Nuclear
Y. Lei, H. Jiang, S. Pittel
Article
Physics, Nuclear
M. Bao, H. Jiang, Y. M. Zhao, A. Arima
