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arXiv · hep-ph/0107288

Phi Mesons from a Hadronic Fireball

Peter Filip·Evgeni E. Kolomeitsev
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Abstract

Production of $ϕ$ mesons is considered in the course of heavy-ion collisions at SPS energies. We investigate the possible difference in momentum distributions of $ϕ$ mesons measured via their leptonic ($μ^+μ^-$) and hadronic ($K^+K^-$) decays. Rescattering of secondary kaons in the dense hadron gas together with the influence of in-medium kaon potential can lead to a relative decrease of a $ϕ$ yield observed in the hadronic channel. We analyze how the in-medium modifications of meson properties affect apparent - reconstructed momentum distributions of $ϕ$ mesons. Quantitative results are presented for central Pb+Pb collisions at $E_{beam}=158 GeV/A$.

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Peter Filip, Evgeni E. Kolomeitsev. 2001-07-27. Phi Mesons from a Hadronic Fireball. https://doi.org/10.1103/physrevc.64.054905

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