High density symmetric nuclear matter in the Bethe-Brueckner-Goldstone approach

2001 ◽  
Vol 65 (1) ◽  
Author(s):  
M. Baldo ◽  
A. Fiasconaro ◽  
H. Q. Song ◽  
G. Giansiracusa ◽  
U. Lombardo
Keyword(s):  
Nuclear Matter ◽  
High Density ◽  
Symmetric Nuclear Matter

Hyperonic stars within the Bogoliubov quark meson model for nuclear matter

2019 ◽  
Vol 28 (05) ◽  
pp. 1950034
Author(s):  
Prafulla K. Panda ◽  
Constança Providência ◽  
Steven A. Moszkowski ◽  
Henrik Bohr ◽  
João da Providência
Keyword(s):  
Neutron Stars ◽  
Nuclear Matter ◽  
Quark Matter ◽  
Present Model ◽  
Massive Stars ◽  
Symmetric Nuclear Matter ◽  
The Core ◽  
Meson Coupling

We generalize the Bogoliubov quark-meson coupling (QMC) model to also include hyperons. The hyperon-[Formula: see text]-meson couplings are fixed by the model and the hyperon-[Formula: see text]-meson couplings are fitted to the hyperon potentials in symmetric nuclear matter. The present model predicts neutron stars with masses above 2[Formula: see text] and the radius of a 1.4[Formula: see text] star [Formula: see text]14[Formula: see text]km. In the most massive stars, bags overlap at the core of the star, and this may be interpreted as a transition to deconfined quark matter.

Pion condensation in symmetric nuclear matter

1991 ◽  
Vol 17 (6) ◽  
pp. 887-900 ◽  
Author(s):  
T Shamsunnahar ◽  
S Saha ◽  
K Kabir ◽  
L M Nath
Keyword(s):  
Nuclear Matter ◽  
Symmetric Nuclear Matter ◽  
Pion Condensation

scholarly journals Possible Structures of Pion Condensate in Symmetric Nuclear Matter

1980 ◽  
Vol 63 (5) ◽  
pp. 1665-1687 ◽  
Author(s):  
T. Matsui ◽  
T. Otofuji ◽  
K. Sakai ◽  
M. Yasuno
Keyword(s):  
Nuclear Matter ◽  
Symmetric Nuclear Matter ◽  
Pion Condensate

Finite temperature RPA in symmetric nuclear matter with Skyrme interactions

1996 ◽  
Vol 597 (1) ◽  
pp. 1-18 ◽  
Author(s):  
E.S. Hernández ◽  
J. Navarro ◽  
A. Polls ◽  
J. Ventura
Keyword(s):  
Nuclear Matter ◽  
Finite Temperature ◽  
Symmetric Nuclear Matter

scholarly journals EQUATION OF STATE FOR DENSE SUPERNOVA MATTER

2009 ◽  
Vol 18 (08) ◽  
pp. 1205-1226 ◽  
Author(s):  
C. C. MOUSTAKIDIS
Keyword(s):  
High Temperature ◽  
Equation Of State ◽  
Nuclear Matter ◽  
Thermal Effects ◽  
Effective Interaction ◽  
Interaction Model ◽  
Decay Process ◽  
High Density ◽  
Β Decay ◽  
Charge Neutrality

We provide an equation of state for high density supernova matter by applying a momentum-dependent effective interaction. We focus on the study of the equation of state of high density and high temperature nuclear matter containing leptons (electrons and neutrinos) under the chemical equilibrium condition. The conditions of charge neutrality and equilibrium under the β-decay process lead first to the evaluation of the lepton fractions and afterward to the evaluation of internal energy, pressure, entropy and, in total to the equation of state of hot nuclear matter for various isothermal cases. Thermal effects on the properties and equation of state of nuclear matter are evaluated and analyzed in the framework of the proposed effective interaction model. Since supernova matter is characterized by a constant entropy, we also present the thermodynamic properties for the isentropic case. Special attention is devoted to the study of the contribution of the components of β-stable nuclear matter to the entropy per particle, a quantity of great interest for the study of structure and collapse of supernovas.

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