期刊
PHYSICAL REVIEW C
卷 81, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.81.055803
关键词
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资金
- US National Science Foundation [PHY-0758115, PHY-0652548, PHY-0757839]
- Welch Foundation [A-1358]
- Research Corporation [7123]
- Texas Coordinating Board of Higher Education [003565-0004-2007]
- National Natural Science Foundation of China [10675082, 10975097]
- MOE of China [NCET-05-0392]
- Shanghai Rising-Star Program [06QA14024]
- SRF for ROCS, SEM of China
- National Basic Research Program of China (973 Program) [2007CB815004]
- Direct For Mathematical & Physical Scien
- Division Of Physics [0757839] Funding Source: National Science Foundation
The isospin- and momentum-dependent MDI interaction, which has been extensively used in intermediate-energy heavy-ion reactions to study the properties of asymmetric nuclear matter, is extended to include the nucleon-hyperon and hyperon-hyperon interactions by assuming the same density, momentum, and isospin dependence as for the nucleon-nucleon interaction. The parameters in these interactions are determined from the empirical hyperon single-particle potentials in symmetric nuclear matter at saturation density. The extended MDI interaction is then used to study in the mean-field approximation the equation of state of hypernuclear matter and also the properties of hybrid stars by including the phase transition from hypernuclear matter to quark matter at high densities. In particular, the effects of attractive and repulsive Sigma N interactions and different values of symmetry energies on the hybrid star properties are investigated.
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