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arXiv · 1907.11356

Lepton angular distributions of Drell-Yan process in pQCD and a geometric approach

Wen-Chen Chang·Randall Evan McClellan·Jen-Chieh Peng·Oleg Teryaev
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Abstract

The lepton angular distributions of the Drell-Yan process in the fixed-target experiments are investigated by NLO and NNLO perturbative QCD. We present the calculated angular parameters $\lambda$, $\mu$, $\nu$ and the degree of violation of the Lam-Tung relation, $1-\lambda-2\nu$, for the E615 experiment as well as predictions for the COMPASS experiment. Many salient features of transverse momentum and rapidity dependence could be qualitatively understood by a geometric approach.

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Wen-Chen Chang, Randall Evan McClellan, Jen-Chieh Peng, Oleg Teryaev. 2019-07-26. Lepton angular distributions of Drell-Yan process in pQCD and a geometric approach. https://arxiv.org/abs/1907.11356

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