Speaker
Bhanu Sharma
(Panjab University)
Description
The STAR experiment at Relativistic Heavy Ion Collider (RHIC) investigates the behaviour of strongly interacting matter at high density and searches for the possible formation of Quark Gluon Plasma (QGP). Event-by-event net charge fluctuation has been proposed as one of the indicators of QGP formation in heavy ion collisions. The fluctuation in net charge depends on the squares of the charges present in the system, which depends on the state from which it originates. The system passing through a QGP phase which has quarks as charge carriers, should result in a significantly different net charge fluctuation as compared to Hadron Gas (HG). The variance of the ratio of positive and negative charges scaled by the total charge particle multiplicity (a quantity called D) is approximately 4 times smaller for QGP as compared to HG [1].
We will present preliminary results on net charge fluctuations for Au+Au
collisions at \sqrt{s_{NN}} = 39 GeV and will also present their
dependence on energy and collision centrality by comparing to the
published results [2].
Primary author
Bhanu Sharma
(Panjab University)
