Münster 2002 – scientific programme
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HK: Physik der Hadronen und Kerne
HK 33: Heavy Ions IV
HK 33.6: Talk
Wednesday, March 13, 2002, 15:15–15:30, E
Rescattering in Heavy Ion Collisions - Charge Fluctuations — •Michael Döring1,2,3 and Volker Koch1,2 — 1Theory Group, GSI, Planckstrasse 1, 64291 Darmstadt — 2Nuclear Theory Group, LBNL, Cyclotron Rd. 1, 94720 Berkeley — 3University of Münster, Dep. of Theoretical Physics, 48149 Münster
One major goal in heavy ion collisions is to produce evidence of the quark gluon plasma (QGP). A possible signature is reduced charge fluctuation due to the fractional charge of the quarks in the QGP. In the hadronic phase fluctuations may be screened or enhanced caused by hadronic interaction. Using an effective Lagrangian based on vector dominance, we calculate the charge fluctuations up to second order in a hot pion gas applying finite temperature field theory.