Properties of the scalar <i>σ</i> meson at finite density

Véronique Bernard; Ulf-G. Meissner; Ismail Zahed

doi:10.1103/PhysRevLett.59.966

Properties of the scalar σ meson at finite density

Véronique Bernard, Ulf-G. Meissner, and Ismail Zahed

Phys. Rev. Lett. 59, 966 – Published 31 August 1987

Abstract

The behavior of the scalar σ meson at high density is discussed in the context of the Nambu–Jona-Lasinio model. The decrease of the σ-meson mass with increasing density suggests a softening of the equation of state at high density in most of the relativistic mean-field calculations.

Received 29 June 1987

DOI:https://doi.org/10.1103/PhysRevLett.59.966

Authors & Affiliations

Véronique Bernard

Centre de Recherches Nucléaires et Université Louis Pasteur de Strasbourg, Groupe de Physique Nucléaire Théorique, Bote Postale 20, 67037 Strasbourg Cedex, France
Center for Theoretical Physics, Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Ulf-G. Meissner