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Hadron widths in mixed-phase matter

David Seibert, Che Ming Ko

nucl-tharXiv:nucl-th/9402021

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 ϕ width observed in a central Au+Au collision at 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.

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