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Compressible bag model and dibaryon stars

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Zeitschrift für Physik C Particles and Fields

Abstract

We propose “dibaryon stars” on the base of the compressible bag model, in which a hadron bag responds microscopic thermal pressure of the other bags and the volume exclusion effect is considered. In general, a free bosonic point-particle matter has no pressure at zero temperature, but a condensed bosonic “bag” matter is able to have a finite pressure because of both the compressibility and the volume exclusion effects. We will show that the condensed dibaryon matter not only produce a very soft equation of state but can also bring the 1.44M ⊚ mass star.

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Authors and Affiliations

  1. Department of Physics, College of Liberal Arts, Kagoshima University, Kagoshima 890, Japan

    Shigenori Kagiyama, Akihiro Nakamura & Toshihiro Omodaka

Authors
  1. Shigenori Kagiyama
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  2. Akihiro Nakamura
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  3. Toshihiro Omodaka
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Kagiyama, S., Nakamura, A. & Omodaka, T. Compressible bag model and dibaryon stars. Z. Phys. C - Particles and Fields 56, 557–560 (1992). https://doi.org/10.1007/BF01474728

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  • DOI: https://doi.org/10.1007/BF01474728

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