NUKLEONIKA 2006, 51(Suppl. 3):s65-s68

CHARGE TRANSFER FLUCTUATIONS AS A QGP SIGNAL

Sangyong Jeon1,2, Lijun Shi1, Marcus Bleicher3

1 Department of Physics, McGill University, Montréal Québec H3A 2T8, Canada
2 RIKEN-BNL Research Center, Upton NY 11973, USA
3 Institut für Theoretische Physik, Johann Wolfgang Goethe-Universität, 8-10 Robert Mayer Str., 60054 Frankfurt am Main, Germany

In this study, we analyze the recently proposed charge transfer fluctuations within a finite pseudorapidity space. As the charge transfer fluctuation is a measure of the local charge correlation length, it is capable of detecting inhomogeneity in the hot and dense matter created by heavy-ion collisions. We predict that going from peripheral to central collisions, the charge transfer fluctuations at midrapidity should decrease substantially while the charge transfer fluctuations at the edges of the observation window should decrease by a small amount. These are consequences of having a strongly inhomogeneous matter where the QGP component is concentrated around midrapidity. We also show how to constrain the values of the charge correlations lengths in both the hadronic phase and the QGP phase using the charge transfer fluctuations. Current manuscript is based on the two recent papers.