Double Transverse Spin Asymmetries at Next-to-leading Order in QCD

Abstract

We present a technique to calculate the cross sections and spin asymmetries for transversely polarized $pp$ collisions at NLO in QCD and report on the use of this technique for the processes $p^{\uparrow }{p}^{\uparrow }\to \gamma X$, $p^{\uparrow }{p}^{\uparrow }\to \pi X$ and $p^{\uparrow }{p}^{\uparrow }\to l^{+}{l}^{-}X$.

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