Skip to main content
Springer Nature Link
Log in

Compressible bag model and dibaryon stars

  • Published:
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.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Subscribe and save

Springer+ Basic
$34.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or eBook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Explore related subjects

Discover the latest articles and news from researchers in related subjects, suggested using machine learning.

References

  1. S. Kagiyama, A. Nakamura, T. Omodaka: Z. Phys. C—Particles and Fields 53 (1992) 163

    Google Scholar 

  2. B.D. Serot: Phys. Lett. B86 (1979) 146; B87 (1979) 403

    Google Scholar 

  3. V.R. Pandharipande, R.A. Smith: Nucl. Phys. A175 (1975) 225

    Google Scholar 

  4. H.A. Bethe, M. Johnson: Nucl. Phys. A230 (1974) 1

    Google Scholar 

  5. V.R. Pandharipande: Nucl. Phys. A178 (1971) 123

    Google Scholar 

  6. D.C. Backer et al.: Nature 300 (1982) 615

    Google Scholar 

  7. J. Cleymans, K. Redlich, H. Satz, E. Suhonen: Z. Phys. C — Particles and Fields 33 (1983) 151; J. Cleymans, E. Suhonen: Z. Phys. C — Particles and Fields 37 (1987) 51; H. Kouno, F. Takagi: Z. Phys. C — Particles and Fields 42 (1989) 209; C — Particles and Fields 45 (1989) 43

    Google Scholar 

  8. T. DeGrand, R.L. Jaffe, K. Johnson, J. Kiskis: Phys. Rev. D12 (1975) 2060

    Google Scholar 

  9. J.I. Kapusta: Phys. Rev. D23 (1981) 2444; R.D. Pisarski: Phys. Lett. 110B (1982) 155; S. Kagiyama, S. Hirooka, H. Kikukawa, J. Kikukawa: Prog. Theor. Phys. 69 (1983) 579; S. Kagiyama: Abstract Book of Proceedings of XI International Conference on Particles and Nuclei, 538 Kyoto 1987; S. Kagiyama, A. Nakamura: Abstract Book of Proceedings of XI International Conference on Particles and Nuclei 456 Kyoto 1987

    Google Scholar 

  10. T. Siemiarczuk, J. Stepaniak, P. Zieliński: Phys. Lett. 128B (1983) 367

    Google Scholar 

  11. V.R. Pandharipande: Nucl. Phys. A178 (1971) 123

    Google Scholar 

  12. J.R. Oppenheimer, G.M. Volkov: Phys. Rev. 55 (1939) 374; R.C. Toleman: Phys. Rev. 55 (1939) 364

    Google Scholar 

  13. J.L. Friedman, J.R. Ipser, L. Parker: Phys. Rev. Lett. 62 (1989) 3015

    Google Scholar 

  14. Y. Iwasaki, T. Yoshie, Y. Tsuboi: Phys. Rev. Lett. 60 (1988) 1371

    Google Scholar 

Download references

Author information

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
    View author publications

    You can also search for this author inPubMed Google Scholar

  2. Akihiro Nakamura
    View author publications

    You can also search for this author inPubMed Google Scholar

  3. Toshihiro Omodaka
    View author publications

    You can also search for this author inPubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

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

Download citation

  • Received:

  • Issue Date:

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

Keywords