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Drell-Yan lepton pair production at high energies in the kt-factorization approach | | A.V. Lipatov
; M.A. Malyshev
; N.P. Zotov
; | | Date: |
30 Oct 2011 | | Abstract: | In the framework of the kt-factorization approach, the production of
unpolarized Drell-Yan lepton pair at high energies is studied. The
consideration is based on the O(alpha) and $O(alpha alpha_s) off-shell partonic
matrix elements with virtual photon and Z boson exchange. The calculations
include leptonic decays of Z bosons with full spin correlations as well as
gamma - Z interference. The unintegrated parton densities in a proton are
determined by the Kimber-Martin-Ryskin prescription. Our numerical predictions
are compared with the data taken by the D0, CDF and CMS collaborations at the
Tevatron and LHC energies. Special attention is put on the specific angular
distributions measured very recently by the CDF collaboration for the first
time. | | Source: | arXiv, 1110.6582 | | Services: | Forum | Review | PDF | Favorites | |
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