scholarly journals Neutron-proton mass difference in isospin-asymmetric nuclear matter

2007 ◽  
Vol 32 (3) ◽  
pp. 299-309 ◽  
Author(s):  
U. -G. Meißner ◽  
A. M. Rakhimov ◽  
A. Wirzba ◽  
U. T. Yakhshiev
2010 ◽  
Vol 3 ◽  
pp. 06008 ◽  
Author(s):  
U.-G. Meißner ◽  
A.M. Rakhimov ◽  
A. Wirzba ◽  
U.T. Yakhshiev

2007 ◽  
Vol 31 (3) ◽  
pp. 357-364 ◽  
Author(s):  
U. -G. Meißner ◽  
A. M. Rakhimov ◽  
A. Wirzba ◽  
U. T. Yakhshiev

1992 ◽  
Vol 01 (04) ◽  
pp. 871-882 ◽  
Author(s):  
G. KREIN ◽  
D. P. MENEZES ◽  
M. NIELSEN

The neutron-proton mass difference in nuclear matter is calculated within the context of chiral models involving nucleon and meson degrees of freedom. The interplay of chiral symmetry and charge symmetry breaking on neutron and proton self-energies are discussed in a relativistic Hartree–Fock approximation. Exchange terms are crucial to obtain different contributions for the neutron and proton self-energies. Density dependence of meson masses and coupling constants are taken into account. We find that the neutron-proton mass difference in nuclear matter increases as the density increases, contrary to the predictions of several quark models and of QCD sum rules at finite density.


2021 ◽  
Vol 103 (5) ◽  
Author(s):  
Vishal Parmar ◽  
Manoj K. Sharma ◽  
S. K. Patra

2020 ◽  
Vol 102 (6) ◽  
Author(s):  
Rajesh Kumar ◽  
Arvind Kumar

1990 ◽  
Vol 05 (14) ◽  
pp. 1071-1080 ◽  
Author(s):  
S. W. HUANG ◽  
M. Z. FU ◽  
S. S. WU ◽  
S. D. YANG

The equation of state of the asymmetric nuclear matter is calculated with the Gogny D1 effective density-dependent nucleon-nucleon interaction and the Coulomb interaction in the framework of the finite-temperature HF method with the rearrangement term. The dependence of the thermodynamical properties such as the critical temperature of the liquid-gas phase transition, the chemical potential, the compression modulus and the entropy on the Coulomb interaction in nuclear matter is treated by using a shielded two-body Coulomb potential and this method has been found to be a reasonable and effective approach.


2006 ◽  
Vol 73 (2) ◽  
Author(s):  
A. Rios ◽  
A. Polls ◽  
H. Müther

1988 ◽  
Vol 483 (3-4) ◽  
pp. 479-492 ◽  
Author(s):  
M. Lopez-Quelle ◽  
S. Marcos ◽  
R. Niembro ◽  
A. Bouyssy ◽  
Nguyen Van Giai

Sign in / Sign up

Export Citation Format

Share Document