Thermal charm production by massive gluons and quarks

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dc.creatorLevai, Peter
dc.creatorVogt, Ramona
dc.date1997-04-20
dc.date.accessioned2026-07-07T11:09:36Z
dc.date.available2026-07-07T11:09:36Z
dc.descriptionWe investigate charm production in an equilibrated quark-gluon plasma produced in heavy-ion collisions at RHIC and LHC. Effective quark and gluon masses are introduced from thermal QCD calculations. Assuming a Bjorken-type longitudinal expansion and including the influence of temperature dependent masses on the expansion, we determine the total number of c\bar{c} pairs produced in the quark-gluon plasma phase. We calculate the charm production rate at leading order with massive gluons and quarks and compare our result to charm production by massless partons. We consider two different scenarios for the initial conditions, a parton gas with a rather long kinetic equilibration time and a minijet gas with a short equilibration time. In a parton gas, assuming m_c=1.2 GeV, we obtain a substantial enhancement over the thermal charm rate from massless quarks and gluons, up to 4.9 secondary charm quark pairs in Au+Au collisions at RHIC and 245 charm pairs in Pb+Pb collisions at the LHC.
dc.description19 pages in Latex and 9 Postscript figures
dc.identifierhttps://arxiv.org/abs/hep-ph/9704360
dc.identifierhttp://arxiv.org/abs/hep-ph/9704360
dc.identifierPhys.Rev.C56:2707-2717,1997
dc.identifierdoi:10.1103/PhysRevC.56.2707
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190523
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThermal charm production by massive gluons and quarks
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