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arXiv · 0704.0642

Direct photons and dileptons via color dipoles

B. Z. Kopeliovich·A. H. Rezaeian·H. J. Pirner·Ivan Schmidt
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Abstract

Drell-Yan dilepton pair production and inclusive direct photon production can be described within a unified framework in the color dipole approach. The inclusion of non-perturbative primordial transverse momenta and DGLAP evolution is studied. We successfully describe data for dilepton spectra from 800-GeV pp collisions, inclusive direct photon spectra for pp collisions at RHIC energies $\sqrt{s}=200$ GeV, and for $p\bar{p}$ collisions at Tevatron energies $\sqrt{s}=1.8$ TeV, in a formalism that is free from any extra parameters.

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B. Z. Kopeliovich, A. H. Rezaeian, H. J. Pirner, Ivan Schmidt. 2007-07-24. Direct photons and dileptons via color dipoles. https://doi.org/10.1016/j.physletb.2007.07.055

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