Mass shift, width broadening and spectral density of rho-mesons produced in heavy ion collisions

Details Mass shift, width broadening and spectral density of rho-mesons produced in heavy ion collisions Mass shift, width broadening and spectral density of rho-mesons produced in heavy ion collisions

1999-07-19

arxiv.org/abs/hep-ph/9907411v1

Nucl.Phys. A661 (1999) 514-517

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at Quark Matter '99, the 14th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Torino, It

Scientific paper

Our recent work on modifications of rho-mesons formed at the last stage of
evolution of hadronic matter produced in heavy ion collisions is summarized. It
is found that while the mass shift is on the order of a few tens of MeV, the
width and spectral density become so broad that rho may lose its identity as a
well defined resonance.

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