Isospin dependence of incompressibility in relativistic and nonrelativistic mean field calculations

Journal Article · Sat Sep 15 04:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.034327· OSTI ID:21064355

Sagawa, Hiroyuki ^[1]; Yoshida, Satoshi ^[2]; Guomo, Zeng ^[3]; Jianzhong, Gu; Xizhen, Zhang ^[4]

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1. Center for Mathematical Sciences, University of Aizu, Aizu-Wakamatsu, Fukushima 965-8580 (Japan)
2. Science Research Center, Hosei University, 2-17-1 Fujimi, Chiyoda, Tokyo 102-8160 (Japan)
3. School of Physics, Jilin University, Changchun 130021 (China)
4. China Institute of Atomic Energy, P. O. Box 275(18), Beijing 102413 (China)

The isospin dependence of incompressibility is investigated in Skyrme Hartree-Fock (SHF) and relativistic mean field (RMF) models. The correlations between the nuclear matter incompressibility and the isospin-dependent term of the finite nucleus incompressibility is elucidated using the Thomas-Fermi approximation. The Coulomb term is also studied by using various different Skyrme Hamiltonians and RMF Lagrangians. Microscopic HF+random phase approximation (RPA) calculations are performed with Skyrme interactions for {sup 208}Pb and Sn isotopes to study the strength distributions of isoscalar giant monopole resonances. The symmetry term of nuclear incompressibility is extracted to be K{sub {tau}}=-(500{+-}50) MeV from the recent experimental data of isoscalar giant monopole resonances (ISGMR) in Sn isotopes.

• OSTI ID: 21064355
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 76; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CORRELATIONS
DISTRIBUTION
GIANT RESONANCE
HAMILTONIANS
HARTREE-FOCK METHOD
ISOSPIN
LAGRANGIAN FUNCTION
MEAN-FIELD THEORY
MEV RANGE
MONOPOLES
NUCLEAR MATTER
RANDOM PHASE APPROXIMATION
RELATIVISTIC RANGE
SKYRME POTENTIAL
SYMMETRY
THOMAS-FERMI MODEL
TIN ISOTOPES