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Hadron widths in mixed-phase matter

David Seibert·Che Ming Ko
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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 $\sqrt{s}=200$ 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 $(dN/dy)^{-1/3}$.

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David Seibert, Che Ming Ko. 1994-02-15. Hadron widths in mixed-phase matter. https://doi.org/10.1103/physrevc.50.r559

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