Intrinsic transverse momentum and the polarized Drell-Yan process

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.51.3357· OSTI ID:6547120

Tangerman, R D; Mulders, P J ^[1]

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1. National Institute for Nuclear Physics and High Energy Physics (NIKHEF-K), P.O. Box 41882, NL-1009 DB Amsterdam (Netherlands)

In this paper we calculate the cross section at leading order in 1/[ital Q] for polarized Drell-Yan scattering at measured lepton-pair transverse momentum [ital Q][sub [ital T]], using a field theoretical parton model approach. We find that for a hadron with spin 1/2 the quark content at leading order is described by six distribution functions for each flavor, which depend on both the light-cone momentum fraction [ital x] and the quark transverse momentum [bold k][sub [ital T]][sup 2]. These functions are illustrated for a free-quark ensemble. The cross sections for both longitudinal and transverse polarizations are expressed in terms of convolution integrals over the distribution functions.

• OSTI ID: 6547120
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 51:7; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662340* -- Hadron Interactions-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPOSITE MODELS
CROSS SECTIONS
DISTRIBUTION FUNCTIONS
DRELL MODEL
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
INTERACTIONS
LEPTONS
LIGHT CONE
LINEAR MOMENTUM
MATHEMATICAL MODELS
PAIR PRODUCTION
PARTICLE MODELS
PARTICLE PRODUCTION
PARTON MODEL
POLARIZATION
SCATTERING
SPACE-TIME
TRANSVERSE MOMENTUM