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arXiv · 1607.01447

Direct virtual photon production in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV

STAR Collaboration
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Abstract

We report the direct virtual photon invariant yields in the transverse momentum ranges $1\!<\!p_{T}\!<\!3$ GeV/$c$ and $5\!<\!p_T\!<\!10$ GeV/$c$ at mid-rapidity derived from the dielectron invariant mass continuum region $0.10 6$ GeV/$c$ the production follows $N_{bin}$ scaling. Model calculations with contributions from thermal radiation and initial hard parton scattering are consistent within uncertainties with the direct virtual photon invariant yield.

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STAR Collaboration. 2016-07-06. Direct virtual photon production in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. https://arxiv.org/abs/1607.01447

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