Production of Drell-Yan lepton pairs in hadron collisions: Transverse-momentum resummation at next-to-next-to-leading logarithmic accuracy

By G. Bozzi, S. Catani, G. Ferrera, D. Florian, M. Grazzini. 2010

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Abstract We consider the transverse-momentum ( q T ) distribution of Drell–Yan lepton pairs produced in hadron collisions. At small values of q T , we resum the logarithmically-enhanced perturbative QCD contributions up to next-to-next-to-leading logarithmic accuracy. At intermediate and large values of q T , we consistently combine resummation with the known next-to-leading order perturbative result. All perturbative terms up to order α S 2 are included in our computation which, after integration over q T , reproduces the known next-to-next-to-leading order result for the Drell–Yan total cross section. We show and discuss the reduction in the scale dependence of the results with respect to lower-order calculations, estimating the corresponding perturbative uncertainty. We present a preliminary comparison with Tevatron Run II data.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/b5b354428da77212b4402de6a127ad4234ac51c1

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In Nuclear and High Energy Physics

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