Dilepton production from parton interactions in the early stage of relativistic heavy-ion collisions

Details Dilepton production from parton interactions in the early stage of relativistic heavy-ion collisions Dilepton production from parton interactions in the early stage of relativistic heavy-ion collisions

2011-02-17

arxiv.org/abs/1102.3624v1

J.Phys.Conf.Ser.312:012010,2011

Physics

Nuclear Physics

Nuclear Theory

Talk presented at the International Nuclear Physics Conference (INPC 2010) in Vancouver, Canada on July 4 - 9, 2010, to be pub

Scientific paper

10.1088/1742-6596/312/1/012010

We address the dilepton production from the parton interactions in the early stage of relativistic heavy-ion collisions within the parton-hadron-string dynamics (PHSD) off-shell transport approach. The description of partons in PHSD is based on the dynamical quasiparticle model (DQPM) matched to reproduce lattice QCD results in thermodynamic equilibrium. According to the DQPM the constituents of the strongly interacting quark-gluon plasma (sQGP) are massive and off-shell quasi-particles (quarks and gluons) with broad spectral functions. In order to address the electromagnetic radiation of the sQGP, we derive off-shell cross sections of q+qbar->gamma*, q+qbar->gamma*+g and q+g->gamma*+q (qbar+g->gamma*+qbar) reactions taking into account the effective propagators for quarks and gluons from the DQPM. Dilepton production in In+In collisions at 158 AGeV and in Au+Au at sqrt(s)=200 GeV is calculated by implementing these off-shell processes into the PHSD transport approach. By comparing to the data of the NA60 and PHENIX Collaborations, we study the relative importance of different dilepton production mechanisms and point out the regions in phase space where partonic channels are dominant.

Affiliated with

Also associated with

No associations

Rating

Dilepton production from parton interactions in the early stage of relativistic heavy-ion collisions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dilepton production from parton interactions in the early stage of relativistic heavy-ion collisions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dilepton production from parton interactions in the early stage of relativistic heavy-ion collisions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-380831