Friday, August 20, 2010, 2:00 pm — Small Seminar Room, Bldg. 510
The twist-3 ETQS (Efremov-Teryaev-Qiu-Sterman) matrix element, which has a direct relation to the Sivers parton
distribution, plays a very important role in the phenomenology of transverse single spin asymmetries measured at RHIC in proton-proton collisions. We discuss new results showing that the ETQS matrix element can also be addressed, for instance, in e+p --> jet+X in a rather clean way. This matrix element also shows up e+when
describing transverse single spin asymmetries for W-production at RHIC.
It is argued that the latter observable is very promising in order to check the predicted sign reversal of the Sivers function.
6618 | INT/EXT | Events Calendar
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