TY - JOUR

T1 - Nuclear incompressibility at finite temperature and entropy

AU - Mekjian, A. Z.

AU - Lee, S. J.

AU - Zamick, L.

N1 - Funding Information:
This work was supported in part by the DOE Grant No. DE-FG02-96ER-40987 and DE-FG02-95ER-40940 and in part by Grant No. R05-2001-000-00097-0 from the Basic Research Program of the Korea Science and Engineering Foundation.

PY - 2005/8/18

Y1 - 2005/8/18

N2 - Features of the nuclear isothermal incompressibility κ and adiabatic incompressibility κQ are investigated. The calculations are done at zero and finite temperatures and non-zero entropy and for several equations of state with a long range attraction and a short range repulsion. It is shown that κQ decreases with increasing entropy while the isothermal κ increases with increasing T. A duality is found between the adiabatic κQ and the T=0 isothermal κ. The effect of correlations on κ is studied. A peak in κ can occur from attractive scattering correlations in various two-nucleon spin-isospin channels. The second virial coefficient or ρ2 term in P versus density parallels a result that appears in the theory of superconductivity.

AB - Features of the nuclear isothermal incompressibility κ and adiabatic incompressibility κQ are investigated. The calculations are done at zero and finite temperatures and non-zero entropy and for several equations of state with a long range attraction and a short range repulsion. It is shown that κQ decreases with increasing entropy while the isothermal κ increases with increasing T. A duality is found between the adiabatic κQ and the T=0 isothermal κ. The effect of correlations on κ is studied. A peak in κ can occur from attractive scattering correlations in various two-nucleon spin-isospin channels. The second virial coefficient or ρ2 term in P versus density parallels a result that appears in the theory of superconductivity.

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U2 - 10.1016/j.physletb.2005.06.066

DO - 10.1016/j.physletb.2005.06.066

M3 - Article

AN - SCOPUS:22744445586

SN - 0370-2693

VL - 621

SP - 239

EP - 245

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -