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arXiv · 1211.5539

Drell-Yan lepton pair production at high energies in the Parton Reggeization Approach

M. A. Nefedov·N. N. Nikolaev·V. A. Saleev
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Abstract

According to extensive theoretical studies of the high energy limit of QCD, inelastic interactions are dominated by the multi-Regge final states. The appropriate gauge-invariant objects, which simultaneously incorporate the transverse momentum degrees of freedom, are Reggeized gluons, quarks and antiquarks. In the present communication we extend parton Reggeization approach to Drell-Yan production of massive lepton pairs. The basic ingredient is a process of Reggeized quark-antiquark annihilation, which is described by the Reggeon-Reggeon-photon effective vertex. We calculate transverse-momentum and invariant-mass distributions of Drell-Yan lepton pairs measured at the CERN SPS, FNAL Tevatron and CERN LHC in the different ranges of energy and rapidity. We focus on angular distributions of Drell-Yan leptons in different kinematical ranges. The obtained results are compared with the existing data and a good agreement is found. The predictions for future experiments for Drell-Yan lepton pair production at the CERN LHC have been made.

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M. A. Nefedov, N. N. Nikolaev, V. A. Saleev. 2012-11-27. Drell-Yan lepton pair production at high energies in the Parton Reggeization Approach. https://doi.org/10.1103/physrevd.87.014022

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