Double transverse-spin asymmetries in Drell--Yan and $J/ψ$ production from proton--antiproton collisions
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We perform a NLO numerical study of the double transverse-spin asymmetries in the $J/ψ$ resonance region for proton--antiproton collisions. We analyze the large $x$ kinematic region, relevant for the proposed PAX experiment at GSI, and discuss the implication of the results for the extraction of the transversity densities.
8 pages, 6 figures, Talk given at "Transversity 2005" Como, Italy 7-10 Sep. 2005; eds. World Scientific in press
8 pages, 6 figures, Talk given at "Transversity 2005" Como, Italy 7-10 Sep. 2005; eds. World Scientific in press