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Novel Azimuthal Asymmetries in Drell Yan and Semi-inclusive Deep Inelastic Scattering

Leonard P. Gamberg·Gary R. Goldstein·Karo A. Oganessyan
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Abstract

We consider the leading and sub-leading twist $T$-odd and even contributions to the $\cos 2ϕ$ azimuthal asymmetry in unpolarized dilepton production in Drell-Yan Scattering. We estimate the contributions' effects at $500 {\rm GeV}$, $ 50 {\rm GeV}$, and $25 {\rm GeV}$ energies in the framework of the parton model using a quark diquark-spectator model of the nucleon to approximate the soft contributions.

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Leonard P. Gamberg, Gary R. Goldstein, Karo A. Oganessyan. 2004-11-16. Novel Azimuthal Asymmetries in Drell Yan and Semi-inclusive Deep Inelastic Scattering. https://doi.org/10.1063/1.1871656

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