Nuclear matter symmetry energy and the neutron skin thickness of heavy nuclei

Journal Article · Thu Dec 15 04:00:00 EST 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.064309· OSTI ID:20771086

Liewen, Chen ^[1]; Ko, C M ^[2]; Baoan, Li ^[3]

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1. Institute of Theoretical Physics, Shanghai Jiao Tong University, Shanghai 200240 (China)
2. Cyclotron Institute and Physics Department, Texas A and M University, College Station, Texas 77843-3366 (United States)
3. Department of Chemistry and Physics, P.O. Box 419, Arkansas State University, State University, Arkansas 72467-0419 (United States)

Correlations between the thickness of the neutron skin in finite nuclei and the nuclear matter symmetry energy are studied in the Skyrme Hartree-Fock model. From the most recent analysis of the isospin diffusion data in heavy-ion collisions based on an isospin- and momentum-dependent transport model with in-medium nucleon-nucleon cross sections, a value of L=88{+-}25 MeV for the slope of the nuclear symmetry energy at saturation density is extracted, and this imposes stringent constraints on both the parameters in the Skyrme effective interactions and the neutron skin thickness of heavy nuclei. Predicted thickness of the neutron skin is 0.22{+-}0.04 fm for {sup 208}Pb, 0.29{+-}0.04 fm for {sup 132}Sn, and 0.22{+-}0.04 fm for {sup 124}Sn.

• OSTI ID: 20771086
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 72; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CORRELATIONS
CROSS SECTIONS
DIFFUSION
HARTREE-FOCK METHOD
HEAVY ION REACTIONS
ISOSPIN
LEAD 208
MEV RANGE
NEUTRONS
NUCLEAR MATTER
SKIN
SKYRME POTENTIAL
SYMMETRY
THICKNESS
TIN 124
TIN 132
TRANSPORT THEORY