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Title: TMD PDFs in Drell-Yan lepton pair production at LHC

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.
Authors:
 [1] ;  [2] ;  [3]
  1. Lebedev Institute of Physics, 119991 Moscow (Russian Federation)
  2. SINP, Lomonosov Moscow State University, 119991 Moscow, Russia Joint Institute of Nuclear Physics, 141980 Dubna, Moscow Region (Russian Federation)
  3. SINP, Lomonosov Moscow State University, 119991 Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
22391376
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1654; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANGULAR CORRELATION; CERN LHC; DRELL MODEL; GLUONS; JET MODEL; LEPTONS; MULTIPARTICLE SPECTROMETERS; PAIR PRODUCTION; PARTICLE IDENTIFICATION; PARTICLE PRODUCTION; PARTICLE RAPIDITY; PROTON-PROTON INTERACTIONS; PROTONS; QUARKS; TRANSVERSE MOMENTUM