Hadron widths in mixed-phase matter

Abstract

We derive classically an expression for a hadron width in a two-phase region of hadron gas and quark-gluon plasma (QGP). The presence of QGP gives hadrons larger widths than they would have in a pure hadron gas. We find that the $\varphi$ width observed in a central Au+Au collision at $\sqrt{s}=200$ GeV/nucleon is a few MeV greater than the width in a pure hadron gas. The part of observed hadron widths due to QGP is approximately proportional to $(dN/dy{)}^{-1/3}$.

8 pages, latex, no figures, KSUCNR-002-94

References in corpus (4)

• Damping rates for moving particles in hot QCD
• The Light Hadron Spectrum and Decay Constants in Quenched Lattice QCD
• What can we learn from a second phi meson peak in ultrarelativistic nuclear collisions?
• Finite-size and quark mass effects on the QCD spectrum with two flavors

Cited by in corpus (3)

• Phi Mesons from a Hadronic Fireball
• Secondary phi meson peak as an indicator of QCD phase transition in ultrarelativistic heavy ion collisions
• Study of QGP signatures with the phi->K+K- signal in Pb-Pb ALICE events