Constraints on the Density Dependence of the Symmetry Energy

Journal Article · Fri Mar 27 04:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.122701· OSTI ID:21180319

Tsang, M B; Danielewicz, P; Lynch, W G; Steiner, A W ^[1]; Yingxun, Zhang ^[1]; Famiano, M ^[2]; Li, Zhuxia ^[3]

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1. Joint Institute of Nuclear Astrophysics and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
2. Physics Department, Western Michigan University, Kalamazoo, Michigan 49008 (United States)
3. China Institute of Atomic Energy, P.O. Box 275 (18), Beijing 102413 (China)

Collisions involving {sup 112}Sn and {sup 124}Sn nuclei have been simulated with the improved quantum molecular dynamics transport model. The results of the calculations reproduce isospin diffusion data from two different observables and the ratios of neutron and proton spectra. By comparing these data to calculations performed over a range of symmetry energies at saturation density and different representations of the density dependence of the symmetry energy, constraints on the density dependence of the symmetry energy at subnormal density are obtained. The results from the present work are compared to constraints put forward in other recent analyses.

• OSTI ID: 21180319
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 12 Vol. 102; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COLLIDING BEAMS
ISOSPIN
MOLECULAR DYNAMICS METHOD
NEUTRON SPECTRA
PROTON SPECTRA
SIMULATION
SYMMETRY
TIN 112
TIN 124
TRANSPORT THEORY