Vector Meson Spectral Function and Dilepton Rate in an Effective Mean Field Model

  • Chowdhury Aminul IslamEmail author
  • Sarbani Majumder
  • Najmul Haque
  • Munshi G. Mustafa
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 174)


We have studied the vector meson spectral function (VMSF) in a hot and dense medium within an effective QCD model namely the Nambu–Jona-Lasinio (NJL) and its Polyakov Loop extended version (PNJL) with and without the effect of isoscalar vector interaction (IVI). The effect of the IVI has been taken into account using the ring approximation. We obtained the dilepton production rate (DPR) using the VMSF and observed that at moderate temperature it is enhanced in the PNJL model as compared to the NJL and Born rate due to the suppression of color degrees of freedom.



CAI was supported financially by the University Grants Commission, India; SM, NH and MGM were supported by the Department of Atomic Energy, India.


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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Chowdhury Aminul Islam
    • 1
    Email author
  • Sarbani Majumder
    • 1
  • Najmul Haque
    • 2
  • Munshi G. Mustafa
    • 1
  1. 1.Saha Institute of Nuclear PhysicsKolkataIndia
  2. 2.Department of PhysicsKent State UniversityKentUSA

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