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arXiv · hep-ph/9403227

Intrinsic transverse momentum and the polarized Drell-Yan process

R. D. Tangerman·P. J. Mulders
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Abstract

In this paper we study the cross section at leading order in $1/Q$ for polarized Drell-Yan scattering at measured lepton-pair transverse momentum $Q_T$. 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 lightcone momentum fraction $x$, and the quark transverse momentum $\bbox{k}_T^2$. 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.

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R. D. Tangerman, P. J. Mulders. 1994-08-16. Intrinsic transverse momentum and the polarized Drell-Yan process. https://doi.org/10.1103/physrevd.51.3357

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