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arXiv · 1207.1207

Medium-induced soft gluon radiation in DIS

Néstor Armesto·Hao Ma·Mauricio Martínez·Yacine Mehtar-Tani·Carlos A. Salgado
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Abstract

We study color coherence effects on the medium-induced soft gluon radiation off an asymptotic quark hit by a virtual photon traversing a hot and dense QCD medium. The transverse momentum spectrum of the emitted gluon is computed at 1st order in the opacity expansion. The interference effects between the initial and final state radiation modify the soft gluon spectrum when a finite angle between the incoming and outgoing quarks is considered, presenting a soft divergence. We comment on possible implications on observables in eA collisions.

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Néstor Armesto, Hao Ma, Mauricio Martínez, Yacine Mehtar-Tani, Carlos A. Salgado. 2012-07-05. Medium-induced soft gluon radiation in DIS. https://arxiv.org/abs/1207.1207

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