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arXiv · 1108.4974

Azimuthal asymmetries in single polarized proton-proton Drell-Yan processes

Zhun Lu·Bo-Qiang Ma·Jiacai Zhu
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Abstract

We study the azimuthal asymmetries in proton-proton Drell-Yan processes with one incident proton being transversely or longitudinally polarized. We consider particularly the asymmetries contributed by the leading-twist chiral-odd quark distributions. We analyze the asymmetries with $\sin(2\phi+\phi_S)$ and $\sin(2\phi-\phi_S)$ modulations in transverse single polarized $p^\uparrow p$ Drell-Yan and $\sin2\phi$ asymmetries in longitudinal single polarized $p^\rightarrow p$ Drell-Yan at RHIC, J-PARC, E906 (Fermi Lab) and NICA (JINR). We show that the measurements of the asymmetries in those facilities can provide valuable information of the chiral-odd structure of the nucleon both in the valence and sea regions.

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Zhun Lu, Bo-Qiang Ma, Jiacai Zhu. 2011-08-25. Azimuthal asymmetries in single polarized proton-proton Drell-Yan processes. https://doi.org/10.1103/physrevd.84.074036

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