Hot Nuclear Matter Equation of State and Finite Temperature Kaon Condensation

We develop a nonperturbative technique in field theory to study properties of infinite nuclear matter at zero temperature as well as at finite temperatures. Here we dress the nuclear matter with off–mass shell pions. The techniques of thermofield dynamics are used for finite temperature calculations. Equation of state is derived from the dynamics of the interacting system in a self consistent manner. The transition temperature for nuclear matter appears to be around 15 MeV.

Download Full-text

HOT NUCLEAR MATTER PROPERTIES

International Journal of Modern Physics E ◽

10.1142/s0218301307009002 ◽

2007 ◽

Vol 16 (09) ◽

pp. 3041-3044

Author(s):

TOMAZ PASSAMANI ◽

MARIA LUIZA CESCATO

Keyword(s):

Field Theory ◽

Equation Of State ◽

Nuclear Matter ◽

Finite Temperature ◽

Mean Field Theory ◽

Mean Field ◽

Nonlinear Interactions ◽

Nucleon Mass ◽

Relativistic Mean Field ◽

Linear And Nonlinear

The nuclear matter at finite temperature is described in the relativistic mean field theory using linear and nonlinear interactions. The behavior of effective nucleon mass with temperature was numerically calculated. For the nonlinear NL3 interaction we also observed the striking decrease at temperatures well below the nucleon mass. The calculation of NL3 nuclear matter equation of state at finite temperature is still on progress.

Download Full-text

Nuclear matter in the derivative scalar coupling model. Energy per nucleon and a finite temperature equation of state

Physics Letters B ◽

10.1016/0370-2693(93)90128-5 ◽

1993 ◽

Vol 318 (2) ◽

pp. 277-280 ◽

Cited By ~ 2

Author(s):

Bhaskar Datta ◽

Pradip K. Sahu

Keyword(s):

Equation Of State ◽

Nuclear Matter ◽

Finite Temperature ◽

Coupling Model ◽

Scalar Coupling ◽

Temperature Equation

Download Full-text

SPEED OF SOUND IN NUCLEAR MATTER AND SKYRME EFFECTIVE INTERACTIONS

Modern Physics Letters A ◽

10.1142/s0217732387000112 ◽

1987 ◽

Vol 02 (02) ◽

pp. 71-79 ◽

Cited By ~ 4

Author(s):

R.K. SU ◽

T.T.S. KUO

Keyword(s):

Equation Of State ◽

Nuclear Matter ◽

Speed Of Sound ◽

Finite Temperature ◽

Function Method ◽

Effective Interaction ◽

Similar Calculation ◽

Effective Interactions ◽

Nuclear Equation Of State ◽

Temperature Green’S Function

Using a nuclear equation of state derived from a finite-temperature Green’s function method and the Skyrme effective interactions SkI, SkIII and SkM*, we have calculated the speed of sound in symmetric nuclear matter. For certain densities and temperatures, this speed is found to become super-luminous. Causal boundaries in the density-temperature plane are determined, and they indicate that SkM* is a more desirable effective interaction than SkI and SkIII. Comparison with a similar calculation by Osnes and Strottman is made.

Download Full-text

EQUATION OF STATE OF ASYMMETRIC NUCLEAR MATTER WITH GOGNY AND COULOMB INTERACTIONS

Modern Physics Letters A ◽

10.1142/s0217732390001190 ◽

1990 ◽

Vol 05 (14) ◽

pp. 1071-1080 ◽

Cited By ~ 7

Author(s):

S. W. HUANG ◽

M. Z. FU ◽

S. S. WU ◽

S. D. YANG

Keyword(s):

Equation Of State ◽

Nuclear Matter ◽

Coulomb Interaction ◽

Chemical Potential ◽

Compression Modulus ◽

Nucleon Nucleon ◽

Effective Density ◽

Coulomb Interactions ◽

Asymmetric Nuclear Matter ◽

Nucleon Nucleon Interaction

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.

Download Full-text