Rates for dilepton production at RHIC and LHC between the J Ψ and υ are big

Joseph Kapusta, Larry McLerran, Dinesh Kumar Srivastava

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We study the problem of dilepton production in heavy ion collisions at RHIC and LHC energies. We find that, due to the expected enhanced multiplicities and larger transverse momenta of hadrons arising from minijet production, the dilepton production rate dramatically increases. We consider two extreme limits: a thermalized, hydrodynamically expanding quark-gluon plasma and a free-streaming, non-interacting gas of quarks and gluons. In both cases we find that the dilepton rate arising from electromagnetic annihilations of the quarks is significantly larger than that of the Drell-Yan process for dilepton masses between the J Ψ and the υ.

Original languageEnglish (US)
Pages (from-to)145-150
Number of pages6
JournalPhysics Letters B
Issue number1-2
StatePublished - Jun 4 1992

Bibliographical note

Funding Information:
conversationwsi th B. Jacak, K. Redlich, V. Ruuska-nen and H. Satz. This work was supportedb y the US Departmenot f Energy under Grant No. DOE/DE-FG02-87ER-40328O. ne of us, D.K.S., wishes to ac-knowledgeth e hospitalityo f the TheoreticaPl hysics Institutea t the University of Minnesota where this work was initiated.


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