The $\cos2φ$ azimuthal asymmetry of unpolarized $p\bar{p}$ collisions at Tevatron

Details The $\cos2φ$ azimuthal asymmetry of unpolarized $p\bar{p}$ collisions at Tevatron The $\cos2φ$ azimuthal asymmetry of unpolarized $p\bar{p}$ collisions at Tevatron

2012-01-12

arxiv.org/abs/1201.2472v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 latex pages, 3 figures

Scientific paper

We calculate the $\cos2\phi$ azimuthal asymmetry of the unpolarized $p\bar{p}$ Drell-Yan dilepton production process in the $Z$-resonance region at the Tevatron kinematic domain. Such an azimuthal asymmetry can provide additional information about a spin-related new parton distribution function, i.e., the Boer-Mulders function of the proton, compared to the $pp$ process. Therefore the available data of unpolarized proton-antiproton collision at Tevatron can contribute to our study on the spin structure of the nucleon.

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