TMD PDFs in Drell-Yan lepton pair production at LHC

Journal Article · Fri Apr 10 04:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4916001· OSTI ID:22391376

Baranov, S. P. ^[1]; Lipatov, A. V. ^[2]; Zotov, N. P. ^[3]

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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)

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, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1654; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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