Nuclear Theory·nucl-th

Wednesday·December 9, 2015

4 papers—3 primary·1 cross-listed

01
QMC approach based on the Bogoliubov independent quark model of the nucleon
Henrik Bohr🇩🇰 · Steven A. Moszkowski🇺🇸 · Prafulla K. Panda🇮🇳 · Constanca Providencia🇵🇹 · Joao da Providencia🇵🇹
The quark-meson coupling model due to Guichon is formulated on the basis of the independent quark model of the nucleon proposed by Bogoliubov and is applied to the phenomenological descriptions of symmetric and asymmetric nuclear matter. For symmetric matter, the model predicts, at saturation density, the incompressibility $K = 335.17$ MeV, the quark effective mass $m_{q}^{*} = 238.5$ MeV, and the effective nucleon mass $M^{*} = 0.76 M,$ where $M$ is the nucleon mass in vacuum. Neutron star massesabove two solar masses are obtained.
nucl-thIJMPE(2016)·10 citations
02
Nuclear symmetry energy in a modified quark meson coupling model
R.N. Mishra🇮🇳 · H.S. Sahoo🇮🇳 · P.K. Panda🇮🇳 · N. Barik🇮🇳 · T. Frederico🇧🇷
We study nuclear symmetry energy and the thermodynamic instabilities of asymmetric nuclear matter in a self-consistent manner by using a modified quark-meson coupling model where the confining interaction for quarks inside a nucleon is represented by a phenomenologically averaged potential in an equally mixed scalar-vector harmonic form. The nucleon-nucleon interaction in nuclear matter is then realized by introducing additional quark couplings to $σ$ , $ω$ , and $ρ$ mesons through mean-field approximations. We find an analytic expression for the symmetry energy $E_{sy m}$ as a function of its slope $L$ . Our result establishes a linear correlation between $L$ and $E_{sy m}$ . We also analyze the constraint on neutron star radii in $(p n)$ matter with $β$ equilibrium.
nucl-thPRC(2015)·28 citations
03
Comment on "Structure of the two-neutrino double-\beta\ decay matrix elements within perturbation theory" by Dušan Štefánik, Fedor Šimkovic, Amand Faessler, arXiv:1506.00835 [nucl-th], Phys.Rev.C91 (2015) 6, 064311
Vadim Rodin · O.A. Rumyantsev · M.H. Urin
We comment on a priority claim given by the authors of Phys.Rev.C91 (2015) 6, 064311.
nucl-th0 citations

Affiliations

first authorsco-authorsvia INSPIRE

QMC approach based on the Bogoliubov independent quark model of the nucleon

Nuclear symmetry energy in a modified quark meson coupling model

Comment on "Structure of the two-neutrino double-\beta\ decay matrix elements within perturbation theory" by Dušan Štefánik, Fedor Šimkovic, Amand Faessler, arXiv:1506.00835 [nucl-th], Phys.Rev.C91 (2015) 6, 064311

Affiliations