Monday, July 9, 2012

1207.1686 (Wei-Zhou Jiang et al.)

Large-mass neutron stars with hyperonization    [PDF]

Wei-Zhou Jiang, Bao-An Li, Lie-Wen Chen
Within a density-dependent relativistic mean-field model using in-medium meson-hadron coupling constants and meson masses, we explore effects of in-medium hyperon interactions on properties of neutron stars. It is found that the hyperonic constituents in large-mass neutron stars can not be simply ruled out, while the recently measured mass of the millisecond pulsar J1614-2230 can constrain significantly the in-medium hyperon interactions. Moreover, effects of nuclear symmetry energy on hyperonization in neutron stars are also discussed.
View original: http://arxiv.org/abs/1207.1686

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