PROBING THE QGP PHASE BOUNDARY WITH THERMAL PROPERTIES OF ϕ MESONS

Author:

SAHOO RAGHUNATH12,NAYAK TAPAN K.3,ALAM JAN-E3,NANDI BASANTA K.4,KABANA SONJA5

Affiliation:

1. Indian Institute of Technology Indore, Indore-452017, India

2. Dipartimento di Fisica dell'Università and Sezione INFN di Padova, Italy

3. Variable Energy Cyclotron Centre, Kolkata-700064, India

4. Indian Institute of Technology Bombay, Mumbai-400076, India

5. SUBATECH, 4, Rue Alfred Kastler, BP 20722 – 44307 Nantes, France

Abstract

A novel attempt has been made to probe the QCD phase boundary by using the experimental data for transverse momenta of ϕ mesons produced in nuclear collisions at AGS, SPS and RHIC energies. The data are confronted with simple thermodynamic expectations and lattice QCD results. The experimental data indicate a first-order phase transition, with a mixed phase stretching the energy density between ~1 and 3.2 GeV/fm3 corresponding to SPS energies.

Publisher

World Scientific Pub Co Pte Lt

Subject

Astronomy and Astrophysics,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics

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