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Density dependent parametrization models of the nucleon-meson effective couplings, including the isovector scalar \delta-field, are applied to asymmetric nuclear matter. The nuclear equation of state and the neutron star properties are…

Nuclear Theory · Physics 2008-11-26 B. Liu , M. Di Toro , V. Greco , C. W. Shen , E. G. Zhao , B. X. Sun

We study a particular class of relativistic nuclear energy density functionals in which only nucleon degrees of freedom are explicitly used in the construction of effective interaction terms. Short-distance (high-momentum) correlations, as…

Nuclear Theory · Physics 2008-11-26 T. Niksic , D. Vretenar , P. Ring

A calculation of the current-quark-mass-dependence of nucleon static electromagnetic properties is necessary in order to use observational data as a means to place constraints on the variation of Nature's fundamental parameters. A Poincare'…

Nuclear Theory · Physics 2009-08-18 I. C. Cloet , G. Eichmann , V. V. Flambaum , C. D. Roberts , M. S. Bhagwat , A. Holl

We investigate the triple-alpha process and the Oklo phenomenon to obtain constraints on possible cosmological time variations of fundamental constants. Specifically we study cosmological temporal constraints for the fine structure constant…

Astrophysics · Physics 2009-11-07 H. Oberhummer , A. Csoto , M. Fairbairn , H. Schlattl , M. M. Sharma

We calculate the lifetime of the deuteron from dimension-six quark operators that violate baryon number by one unit. We construct an effective field theory for $|\Delta B|=1$ interactions that give rise to nucleon and $\Delta B=1$ deuteron…

Nuclear Theory · Physics 2021-08-02 F. Oosterhof , J. de Vries , R. G. E. Timmermans , U. van Kolck

We discuss the role of kaon-nucleon and nucleon-nucleon correlations in kaon condensation in dense matter. Correlations raise the threshold density for kaon condensation, possibly to densities higher than those encountered in stable neutron…

Nuclear Theory · Physics 2009-10-28 V. R. Pandharipande , C. J. Pethick , V. Thorsson

We explore low-density neutron matter and its behavior in proximity to the unitary limit. To that end, we construct unitary nucleon-nucleon potentials with infinite 1S0 neutron-neutron scattering lengths. We discuss the Berstch parameter in…

Nuclear Theory · Physics 2023-08-08 Francesca Sammarruca

The energy dependence of light and heavy particle production in hadron-nucleus collisions is discussed. Whereas the production mechanism at lower energies can be understood in the Glauber rescattering picture, experimental data at RHIC…

High Energy Physics - Phenomenology · Physics 2009-11-05 I. C. Arsene , L. Bravina , A. B. Kaidalov , K. Tywoniuk , E. Zabrodin

Precise neutrino-nucleon amplitudes are essential ingredients for predicting neutrino event rates in current and upcoming long-baseline neutrino oscillation experiments. A common neutrino interaction with a low reaction threshold and with…

The deuteron binding energy extracted from the reaction ${}^1H(n,\gamma){}^2H$ is reviewed with the exact relativistic formula, where the initial kinetic energy and the Doppler effect are taken into account. We find that the negligible…

Nuclear Theory · Physics 2009-10-31 Yongkyu Ko , Myung Ki Cheoun , Il-Tong Cheon

We study the electrodisintegration of deuteron at quasi-elastic kinematics and high transferred momentum as a probe for the short distance structure in nuclei. In this reaction, an electron hits a nucleus of deuterium, which breaks up into…

Nuclear Theory · Physics 2021-08-27 Frank Vera

Utilizing various astrophysical constraints on neutron star structures, we carry out a Bayesian analysis on the density-dependent behaviors of coupling constants in RMF models as well as the nuclear matter properties at supranuclear…

Nuclear Theory · Physics 2024-11-12 Cheng-Jun Xia , Wen-Jie Xie , Mohemmedelnazier Bakhiet

We investigate the spin entanglement in few-nucleon scattering processes involving nucleons and deuterons. For this purpose, we consider the entanglement power introduced by Beane et al. We analyze different entanglement entropies as a…

Nuclear Theory · Physics 2023-12-25 Tanja Kirchner , Wael Elkamhawy , Hans-Werner Hammer

The results on the the vector $A_y$, $A_{yy}$ and $A_{xx}$ analyzing powers in deuteron-proton elastic scattering at large scattering angles are presented. These data were obtained at internal target at JINR Nuclotron in the energy range…

A key point of Dirac Brueckner Hartree Fock calculations for nuclear matter is to decompose the self energy of the nucleons into Lorentz scalar and vector components. A new method is introduced for this decomposition. It is based on the…

Nuclear Theory · Physics 2014-11-18 H. Müther , S. Ulrych , H. Toki

In recent several years, the tensor force, one of the most important components of the nucleon-nucleon force, has been implemented in time-dependent density functional theories and it has been found to influence many aspects of low-energy…

Nuclear Theory · Physics 2022-07-27 Xiang-Xiang Sun , Lu Guo

Using the nucleon coalescence model based on kinetic freeze-out nucleons from the 3D MUSIC+UrQMD and the 2D VISHNU hybrid model with a crossover equation of state, we study the multiplicity dependence of deuteron ($d$) and triton ($t$)…

Nuclear Theory · Physics 2021-08-17 Wenbin Zhao , Kai-jia Sun , Che Ming Ko , Xiaofeng Luo

We use big bang nucleosynthesis bounds on the variation of the gravitational coupling to derive constraints on the strength of the deviation from the gravitational inverse-square law due to tensor and vector unparticle exchange.

High Energy Physics - Phenomenology · Physics 2010-05-28 O. Bertolami , N. M. C. Santos

A suggestion is made for distinguishing 2N and 6q short range correlations within the deuteron. The suggestion depends upon observing high momentum backward nucleons emerging from inelastic electromagnetic scattering from a deuteron target.…

High Energy Physics - Phenomenology · Physics 2009-09-25 C. E. Carlson , K. E. Lassila

The experimental results on some centrality depending characteristics of hadron-nuclear and nuclear-nuclear interactions at high energies demonstrate the regime changes. Appearance of strong interaction matter's mixed states is considered…

High Energy Physics - Experiment · Physics 2015-06-25 M. K. Suleymanov , O. B. Abdinnov , N. S. Angelov , B. Z. Belashev , Ya. G. Guseynaliyev , A. A. Kuznetchov , A. S. Vodopianov