phi-Meson Mass Modification in Heavy-Ion Collisions

1997/05/16 by R. S. Bhalerao, S. K. Gupta, Bhalerao, R. S. +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9705332

4 pages, latex, revtex; 2 postscript figures; talk presented at the 3rd International Conference on Physics and Astrophysics of QGP, March 1997, Jaipur, India

arxiv created 1997/05/16 · arxiv updated 2009/11/30

Abstract

We recently presented a method of analyzing invariant-mass spectra of kaon pairs resulting from decay of ϕ mesons produced in high-energy heavy-ion collisions. It can be used to extract the shifts in the mass and the width (ΔM and ΔΓ) of the ϕ mesons when they are inside the dense matter formed in these collisions. We have now performed a Monte-Carlo simulation of this process. We illustrate our method with the help of available preliminary data. Extracted value of ΔM is significantly larger than that obtained with an earlier method. Our results are consistent with the experimentally observed p_T dependence of the mass shift.

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