[Jlab-seminars] Theory Center Seminar

[Mary Fox]

Theory Center Seminar
Monday, Aug. 5, 2013
1:00 p.m. (coffee at 12:45 p.m.)
CEBAF Center, Room L102

Marc Schlegel
University of Tuebingen

*Two-Photon Exchange Effects in Inclusive DIS *

The single-spin asymmetry of unpolarized leptons scattering 
deep-inelastically
off transversely polarized nucleons is discussed. This observable is 
generated
by a two-photon exchange between lepton and nucleon. In a partonic 
description
of the asymmetry the non-perturbative part is given in terms of multiparton
correlations: quark-gluon correlation functions and quark-photon 
correlation
functions. It is argued that a measurement of this observable may help to
constrain multipartonic correlation functions

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