Low-mass dilepton production in $pp$ and $AA$ collisions

Abstract

We adopt a factorized QCD formalism to describe the transverse momentum distribution of low-mass lepton pairs produced in $pp$ collisions, when the pair transverse momentum $Q_T\gg Q$, with the pair's invariant mass $Q$ as low as $Q\sim {\Lambda }_{\mathrm{QCD}}$. We extend this formalism to dilepton production in $AA$ collisions by including the nuclear-dependent power correction due to parton multiple scattering.

4 pages, 1 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee

References in corpus (4)

• Enhanced production of direct photons in Au+Au collisions at sqrt(s_NN)=200 GeV and implications for the initial temperature
• An improved global analysis of nuclear parton distribution functions including RHIC data
• Transverse momentum broadening of vector boson production in high energy nuclear collisions
• Low-mass lepton pair production at large transverse momentum

Cited by in corpus (3)

• Nuclear modification of vector boson production in proton-lead collisions at the LHC
• Production of large transverse momentum dileptons and photons in $pp$, $dA$ and $AA$ collisions by photoproduction processes
• Conversion of photons to dileptons in the Kroll-Wada and parton shower approaches