TMD PDFs in Drell-Yan lepton pair production at LHC
- Lebedev Institute of Physics, 119991 Moscow (Russian Federation)
- SINP, Lomonosov Moscow State University, 119991 Moscow, Russia Joint Institute of Nuclear Physics, 141980 Dubna, Moscow Region (Russian Federation)
- SINP, Lomonosov Moscow State University, 119991 Moscow (Russian Federation)
We consider the transverse momentum dependent (TMD) quark densities of the proton which are very important ingredients for unpolarized Drell-Yan (DY) lepton pair production. We calculate the TMD sea quark density as a convolution of the Catani-Ciafaloni-Fiorani-Marchesini (CCFM)-evolved gluon distribution and the TMD gluon-to-quark splitting function. Based on the O(α{sup 2}) production amplitude q{sup *}+(q-bar){sup *} →Z/γ{sup *}→l{sup +}+l{sup −}, calculated by taking into account the effective q{sup *}(q-bar){sup *}Z/γ{sup *} - vertex, we analyze the distributions on the dilepton invariant mass, transverse momentum and rapidity and specific angular correlations between the produced leptons as measured by the CMS, ATLAS and LHCb collaborations. We briefly duscuss also the process of assiciated lepton pair and jet production in pp collisions at the LHC.
- OSTI ID:
- 22391376
- Journal Information:
- AIP Conference Proceedings, Vol. 1654, Issue 1; Conference: DIFFRACTION 2014: International Workshop on Diffraction in High-Energy Physics, Primosten (Croatia), 10-16 Sep 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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