Fluctuations of particle ratios and the abundance of hadronic resonances

Abstract

In this letter we will argue that the event-by-event fluctuations of the ratio of positively over negatively charged pions provides a measurements of the number of rho and omega mesons right after hadronization. This finding can be utilized to put the hypothesis of chemical equilibration in relativistic heavy ion collisions to a test.

Comments: 4 pages. No figure. Uses revtex with prl, aps, and multicol styles