Parton transverse momenta and Drell-Yan dilepton production

Journal Article · Mon Dec 01 04:00:00 EST 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.114007· OSTI ID:21250995

Szczurek, A ^[1]; Slipek, G ^[1]

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1. Institute of Nuclear Physics PAN, PL-31-342 Cracow (Poland)

The differential cross section for the dilepton production is calculated, including Fermi motion of hadron constituents as well as emission from the ladders in the formalism of unintegrated parton distributions. We use unintegrated parton distributions which fulfill Kwiecinski evolution equations. Both zeroth- and first-order (for matrix element) contributions are included. We calculate azimuthal angular correlations between charged leptons and deviations from the p{sub t}(l{sup +})=p{sub t}(l{sup -}) relation. We concentrate on the distribution in the dilepton-pair transverse momentum. We find incident energy and virtuality dependence of the distribution in the transverse momentum of the lepton pair. We study also azimuthal correlations between jet and dilepton pairs and correlation in the (p{sub 1t}(jet),p{sub 2t}(l{sup +}l{sup -})) space. The results are compared with experimental data of the R209 and UA1 collaborations.

• OSTI ID: 21250995
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 78; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR CORRELATION
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
DRELL MODEL
EMISSION
EQUATIONS
HADRONS
LEPTONS
MATRIX ELEMENTS
PARTICLE PRODUCTION
SIMULATION
TRANSVERSE MOMENTUM