Azimuthal asymmetries in unpolarized Drell-Yan processes and the Boer-Mulders distributions of antiquarks

Details Azimuthal asymmetries in unpolarized Drell-Yan processes and the Boer-Mulders distributions of antiquarks Azimuthal asymmetries in unpolarized Drell-Yan processes and the Boer-Mulders distributions of antiquarks

2010-09-17

arxiv.org/abs/1009.3423v1

Phys.Rev.D82:114025,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 3 figures

Scientific paper

10.1103/PhysRevD.82.114025

Using a previous extraction of the quark Boer-Mulders distributions from
semiinclusive deep inelastic scattering data, we fit the unpolarized Drell-Yan
data on the $\cos 2 \phi$ asymmetry, determining the antiquark Boer-Mulders
distributions. A good agreement with the data is found in the region of low
$q_T$, where the transverse-momentum factorization approach applies.

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