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    • Nuclear matter equation of state and σ-meson parameters

      A B Santra U Lombardo

      Volume 64 Issue 1 January 2005 pp 31-37

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/064/01/0031-0037

    • Keywords

       

      Nuclear matter equation of state; medium modification of meson parameters

    • Abstract

       

      We try to determine phenomenologically the extent of in-medium modification of σ-meson parameters so that the saturation observables of the nuclear matter equation of state (EOS) are reproduced. To calculate the EOS we have used Brueckner-Bethe-Goldstone formalism with Bonn potential as two-body interaction. We find that it is possible to understand all the saturation observables, namely, saturation density, energy per nucleon and incompressibility, by incorporating in-medium modification of σ-meson-nucleon coupling constant and σ-meson mass by a few per cent.

    • Author Affiliations

       

      A B Santra1 U Lombardo2

      1. Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai - 400 085, India
      2. Dipartimento di Fisica, Universita di Catania and INFN-LNS, Via S. Sofia 44, Catania - I-95123, Italy

    • Dates

       
      Published
      January 2005
      Manuscript received
      9 December 2003
      Manuscript revised
      16 April 2004
      Accepted
      13 September 2004

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