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arXiv · 1206.1826

Transverse momentum imbalance of back-to-back particle production in p+A and e+A collisions

Hongxi Xing·Zhong-Bo Kang·Ivan Vitev·Enke Wang
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Abstract

We study the nuclear enhancement of the transverse momentum imbalance for back-to-back particle production in both p+A and e+A collisions. Specifically, we present results for photon+jet and photon+hadron production in p+A collisions, di-jet and di-hadron production in e+A collisions, and heavy-quark and heavy-meson pair production in both p+A and e+A collisions. We evaluate the effect of both initial-state and final-state multiple scattering, which determine the strength of the nuclear-induced transverse momentum imbalance in these processes. We give theoretical predictions for the experimentally relevant kinematic regions in d+Au collisions at RHIC, p+Pb collisions at LHC and e+A collisions at the future EIC and LHeC.

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Hongxi Xing, Zhong-Bo Kang, Ivan Vitev, Enke Wang. 2012-11-08. Transverse momentum imbalance of back-to-back particle production in p+A and e+A collisions. https://doi.org/10.1103/physrevd.86.094010

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