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Chiral Mean Field equation of state with pseudoscalar meson interactions

ORAL

Abstract

We incorporate pseudoscalar meson interactions within a chirally invariant model to describe hadronic matter at large densities and finite temperature. The Chiral Mean Field (CMF) model, a nonlinear realization of the SU(3) sigma model, includes the general principles of chiral symmetry and broken scale invariance from QCD, and describes hadron interactions through meson exchange. This relativistic approach has demonstrated excellent agreement with experimental nuclear data and astrophysical observations, yielding reliable equations of state (EoS) and particle compositions for potential use in heavy ion collision and astrophysical simulations. Notably, previous implementations of the CMF model have only included scalar and vector mesons. In this work, we extend the CMF model to include interacting pseudoscalar mesons at finite density and temperature, examining their influence on the baryon in-medium mass, and the resulting EoS in comparison with first principle lattice QCD results.

Presenters

  • Joaquin J Grefa

    Kent State University

Authors

  • Joaquin J Grefa

    Kent State University

  • Rajesh Kumar

    Kent State University

  • Yuhan Wang

    Kent State University

  • Konstantin Maslov

    University of Houston

  • Veronica Dexheimer

    Kent State University

  • Claudia Ratti

    University of Houston

  • Ralf F Rapp

    Texas A&M University College Station