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Related papers: Effective tensor forces and neutron rich nuclei

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Nuclear reactions induced by stable and/or radioactive neutron-rich nuclei provide the opportunity to pin down the equation of state of neutron-rich matter, especially the density ($\rho$) dependence of its isospin-dependent part, i.e., the…

Nuclear Theory · Physics 2017-08-23 Bao-An Li , Lie-Wen Chen , Che Ming Ko , Andrew W. Steiner

Heavy-ion reactions induced by neutron-rich nuclei provide a unique means to investigate the equation of state of isospin-asymmetric nuclear matter, especially the density dependence of the nuclear symmetry energy. In particular, recent…

Nuclear Theory · Physics 2009-09-29 Lie-Wen Chen , Che Ming Ko , Bao-An Li , Gao-Chan Yong

The recent pioneering campaigns conducted by the Lead Radius Experiment (PREX) and the Calcium Radius Experiment (CREX) collaborations have uncovered major deficiencies in the theoretical description of some fundamental properties of atomic…

Nuclear Theory · Physics 2023-12-22 Marc Salinas , Jorge Piekarewicz

A systematic and specific pattern due to the effects of the tensor forces is found in the evolution of spin-orbit splittings in neutron drops. This result is obtained from relativistic Brueckner-Hartree-Fock theory using the bare…

Nuclear Theory · Physics 2018-02-06 Shihang Shen , Haozhao Liang , Jie Meng , Peter Ring , Shuangquan Zhang

An exponential version of a deep nucleon-nucleon potential involving forbidden states and a tensor component is proposed. The parameters of interaction are chosen by fitting the low-energy characteristics and phase shifts of np scattering…

Nuclear Theory · Physics 2007-05-23 S. B. Dubovichenko

In dense astrophysical plasmas, neutron capture populates highly excited nuclear states close to the neutron threshold. The impact of additional low-energy nuclear excitations via coupling to the atomic shell on the ability of the so-formed…

Nuclear Theory · Physics 2014-07-28 Stephan Helmrich , Katja Spenneberg , Adriana Pálffy

Three-nucleon forces are crucial for the accurate description of nuclear systems, including dense matter probed in neutron stars. We explore nuclear Hamiltonians that reproduce two-nucleon scattering data and properties of light nuclei, but…

High Energy Astrophysical Phenomena · Physics 2023-03-21 Henrik Rose , Nina Kunert , Tim Dietrich , Peter T. H. Pang , Rory Smith , Chris Van Den Broeck , Stefano Gandolfi , Ingo Tews

Assuming a schematic form of the nucleon effective mass as a function of nuclear excitation energy and mass, we provide a simple explanation for understanding the experimentally observed mass dependence of the nuclear caloric curve. It is…

Nuclear Experiment · Physics 2009-11-13 D. V. Shetty , G. A. Souliotis , S. Galanopoulos , S. J. Yennello

Neutrino physics is advancing into a precision era with the construction of new experiments, particularly in the few GeV energy range. Within this energy range, neutrinos exhibit diverse interactions with nucleons and nuclei. This study…

High Energy Physics - Phenomenology · Physics 2024-11-01 Joachim Kopp , Noemi Rocco , Zahra Tabrizi

Quantitative information on the tensor force induced isospin-dependence of short-range nucleon-nucleon correlation (SRC) extracted from recent J-Lab experiments was used in constraining the high-momentum tails of single nucleon momentum…

Nuclear Theory · Physics 2011-04-13 Chang Xu , Bao-An Li

We study if commonly used nucleon-nucleon effective interactions, obtained from fitting the properties of cold nuclear matter and of finite nuclei, can properly describe the hot dense nuclear matter produced in intermediate-energy heavy-ion…

Nuclear Theory · Physics 2019-08-21 Jun Xu , Arianna Carbone , Zhen Zhang , Che Ming Ko

Nucleon effective masses are studied in the framework of the Brueckner-Hartree-Fock many-body approach at finite temperature. Self-consistent calculations using the Argonne $V_{18}$ interaction including microscopic three-body forces are…

Nuclear Theory · Physics 2020-06-09 X. L. Shang , A. Li , Z. Q. Miao , G. F. Burgio , H. -J. Schulze

We study the symmetric nuclear matter using bare nucleon-nucleon ($NN$) interactions with finite particle-number approach within finite cubic boxes. Due to the $NN$ correlations originating from bare $NN$ interaction, two nucleons can be…

A brief review is given concerning the status of the theoretical work on nucleon spectral functions. A recent concern about the validity of the concept of spectroscopic factors as deduced from (e,e'p) reactions at higher Q^2, is discussed…

Nuclear Theory · Physics 2007-05-23 W. H. Dickhoff , E. P. Roth , M. Radici

The effects of magnetic interaction between vector mesons and nucleons on the propagation (mass and width) of the $\rho$-meson in particular moving through very dense nuclear matter is studied and the modifications, qualitative and…

Nuclear Theory · Physics 2008-11-26 Abhee Kanti Dutt- Mazumder , Binayak Dutta-Roy , Anirban Kundu , Triptesh De

In this study, we investigate the impact of effective nucleon mass and the existence of the dineutron $(\mathrm{^{2}n})$ and the tetraneutron $(\mathrm{^{4}n})$ on the thermodynamic properties and nuclear compositions by constructing new…

Nuclear Theory · Physics 2026-04-14 Tatsuya Matsuki , Shun Furusawa , Kohsuke Sumiyoshi , Hong Shen , Katsuhiko Suzuki

During the past two decades, chiral effective field theory has evolved into a powerful tool to derive nuclear forces from first principles. Nearly all two-nucleon interactions have been worked out up to sixth order of chiral perturbation…

Nuclear Theory · Physics 2024-02-23 Ruprecht Machleidt , Francesca Sammarruca

We discuss the need of including tensor terms in the effective Gogny interaction used in mean-field calculations. We show in one illustrative case that, with the usual tensor term that is employed in the Skyrme interaction (and that allows…

Nuclear Theory · Physics 2015-06-11 Marta Anguiano , Marcella Grasso , Giampaolo Co' , Viviana De Donno , Antonio M. Lallena

In this work, the role of the central, spin-force and tensor forces of two-nucleon interaction in building the first 2$^+$ and 4$^+$ states of 20 sd-shell nuclei is studied. Calculations are performed within the framework of the nuclear…

Nuclear Theory · Physics 2024-07-16 Pawan Kumar , Kanhaiya Jha

To obtain an understanding of the structure and reactions of nuclear systems from first principles has been a long-standing goal of nuclear physics. In this respect, few- and many-body systems provide a unique laboratory for studying…

Nuclear Theory · Physics 2020-02-27 Maria Piarulli , Ingo Tews