Double Transverse-Spin Asymmetries in Drell-Yan Processes with Antiprotons

Details Double Transverse-Spin Asymmetries in Drell-Yan Processes with Antiprotons Double Transverse-Spin Asymmetries in Drell-Yan Processes with Antiprotons

2005-12-09

arxiv.org/abs/hep-ph/0512121v5

Phys.Lett.B639:483-487,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 7 figures, uses elsart and feynmp (included); one new reference added

Scientific paper

10.1016/j.physletb.2006.07.012

We present next-to-leading order predictions for double transverse-spin asymmetries in Drell--Yan dilepton production initiated by proton--antiproton scattering. The kinematic region of the proposed PAX experiment at GSI: $30\lesssim{s}\lesssim200\GeV^2$ and $2\lesssim{M}\lesssim7\GeV$ is examined. The Drell--Yan asymmetries turn out to be large, in the range 20--40%. Measuring these asymmetries would provide the cleanest determination of the quark transversity distributions.

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