Speaker
Shinsuke Yoshida
(Los Alamos National Laboratory)
Description
We discuss a new hard pole contribution to the transverse- momentum weighted single-transverse spin asymmetry in semi inclusive deep inelastic scattering. We perform a complete next-to-leading order calculation of the Ph⊥-weighted cross section and show that the new hard pole contribution is required in order to obtain the complete evolution equation for the Qiu-Sterman function.
