One-Gluon-Exchange Effects and Stability of the Quark Alternating Layer Spin-Flavor Structure in High-Density Nuclear Matter

1984 ◽  
Vol 72 (3) ◽  
pp. 563-581
Author(s):  
T. Tatsumi ◽  
I. Watanabe ◽  
R. Tamagaki
Keyword(s):  
Nuclear Matter ◽  
High Density ◽  
Gluon Exchange ◽  
Flavor Structure ◽  
Exchange Effects

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.

scholarly journals Nuclear matter at high density: Phase transitions, multiquark states, and supernova outbursts

2011 ◽  
Vol 74 (3) ◽  
pp. 371-412 ◽  
Author(s):  
M. I. Krivoruchenko ◽  
D. K. Nadyozhin ◽  
T. L. Rasinkova ◽  
Yu. A. Simonov ◽  
M. A. Trusov ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Nuclear Matter ◽  
High Density ◽  
Multiquark States

scholarly journals Chiral Effective Field Theory and the High-Density Nuclear Equation of State

2021 ◽  
Vol 71 (1) ◽  
Author(s):  
C. Drischler ◽  
J.W. Holt ◽  
C. Wellenhofer
Keyword(s):  
Field Theory ◽  
Equation Of State ◽  
Neutron Stars ◽  
Nuclear Matter ◽  
Effective Field Theory ◽  
Effective Field ◽  
High Density ◽  
Chiral Effective Field Theory ◽  
Nuclear Equation Of State ◽  
Density Regime

Born in the aftermath of core-collapse supernovae, neutron stars contain matter under extraordinary conditions of density and temperature that are difficult to reproduce in the laboratory. In recent years, neutron star observations have begun to yield novel insights into the nature of strongly interacting matter in the high-density regime where current theoretical models are challenged. At the same time, chiral effective field theory has developed into a powerful framework to study nuclear matter properties with quantified uncertainties in the moderate-density regime for modeling neutron stars. In this article, we review recent developments in chiral effective field theory and focus on many-body perturbation theory as a computationally efficient tool for calculating the properties of hot and dense nuclear matter. We also demonstrate how effective field theory enables statistically meaningful comparisons among nuclear theory predictions, nuclear experiments, and observational constraints on the nuclear equation of state. Expected final online publication date for the Annual Review of Nuclear and Particle Science, Volume 71 is September 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

The one-gluon exchange effects to of baryon semileptonic decay

1984 ◽  
Vol 135 (5-6) ◽  
pp. 468-472 ◽  
Author(s):  
K. Ushio ◽  
H. Konashi
Keyword(s):  
Semileptonic Decay ◽  
Gluon Exchange ◽  
Exchange Effects ◽  
The One

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
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