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The Effect of Hyperon-Hyperon Interaction on Neutron Stars
Authors:SUN Bao-Xi JIA Huan-Yu MENG Jie ZHAO En-Guang
Institution:Institute of High Energy Physics, The Chinese Academy of Sciences, P.O. Box 918(4), Beijing 100039, China;Institute of Theoretical Physics, The Chinese Academy of Sciences, Beijing 100080, China;Department of Technical Physics, Peking University, Beijing 100871, China Department of Technical Physics, Peking University, Beijing 100871, China Institute of Theoretical Physics, The Chinese Academy of Sciences, Beijing 100080, China;Department of Technical Physics, Peking University, Beijing 100871, China;Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China Institute of Theoretical Physics, The Chinese Academy of Sciences, Beijing 100080, China;Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China
Abstract:The equations ofstate of the neutron star matter are calculated in the relativistic mean-field approximation witl different hyperon coupling constants. The properties of neutron stars are studied by solving the OppenheimerVolkoff equation. It manifests the properties of neutron stars - change explicitly as different hyperon coupling constants are concerned.``
Keywords:neutron star matter  relativistic mean-field approximation  hyperon-hyperon interaction
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