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2007 Volume 16 Issue 7
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Li Ang, Zuo Wei, Mi Ai-Jun, Burgio G. 2007: Hyperon-hyperon interaction in relativistic mean field model, Chinese Physics B, 16(7): 1934-1940.
Citation: Li Ang, Zuo Wei, Mi Ai-Jun, Burgio G. 2007: Hyperon-hyperon interaction in relativistic mean field model, Chinese Physics B, 16(7): 1934-1940.
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Hyperon-hyperon interaction in relativistic mean field model

  • Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China

  • School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China

  • INFN Sezione di Catania, Via Santa Sofia 64, I-95123 Catania, Italy 060853

  • Available Online: 30/07/2007
  • Fund Project: the National Natural Science Foundation of China(Grant 10575119 and 10235030)%the Knowledge Innovation Project (Grant No KJCX2-SW-N02) of Chinese Academy of Sciences, the Major State Basic Research Development Program of China(Grant G2000077400)%the Major Prophase Research Project of Fundamental Research of the Ministry of Science and Technology of China(Grant 2002CCB00200)%the Asia-Europe Link project (Grant No CN/ASIA-LINK/008(94791)) of the European Commission
  • By using the new experimental data of AA potential, this paper has performed a full calculation for strange hadronic matter with different strangeness contents as well as its consequences on the global properties of neutron star matter in relativistic mean field model. It finds that the new weak hyperon-hyperon interaction makes the equations of state much stiffer than the result of the previous strong hyperon-hyperon interaction, and even stiffer than the result without consideration of hyperon-hyperon interaction. This new hyperon-hyperon interaction results in a maximum massof 1.75M⊙ (where M⊙ stands for the mass of the Sun), about 0.2-0.5M⊙ larger than the previous prediction with the presence of hyperons. After examining carefully the onset densities of kaon condensation it finds that this new weak version of hyperon-hyperon interaction favours the occurrence of kaons in comparison with the strong one.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Hyperon-hyperon interaction in relativistic mean field model

  • Available Online: 30/07/2007

Abstract: By using the new experimental data of AA potential, this paper has performed a full calculation for strange hadronic matter with different strangeness contents as well as its consequences on the global properties of neutron star matter in relativistic mean field model. It finds that the new weak hyperon-hyperon interaction makes the equations of state much stiffer than the result of the previous strong hyperon-hyperon interaction, and even stiffer than the result without consideration of hyperon-hyperon interaction. This new hyperon-hyperon interaction results in a maximum massof 1.75M⊙ (where M⊙ stands for the mass of the Sun), about 0.2-0.5M⊙ larger than the previous prediction with the presence of hyperons. After examining carefully the onset densities of kaon condensation it finds that this new weak version of hyperon-hyperon interaction favours the occurrence of kaons in comparison with the strong one.

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