Speaker
Andreas Metz
(Temple University, Philadelphia)
Summary
Transverse single spin asymmetries (SSAs) in inclusive DIS can be generated through two-photon exchange. We mostly focus on the case where two photons couple to different quarks. Such a contribution involves a quark-photon-quark correlator in the nucleon, which has a relation to the ETQS quark-gluon-quark correlator T_F, where T_F plays a key role in the description of transverse SSAs in hadronic collisions. Using different parameterizations for T_F we compute the transverse target SSA in DIS for both a proton and a neutron target and compare the results to recent data. In particular, we also discuss the implications on our understanding of SSAs in hadronic collisions.
Primary author
Andreas Metz
(Temple University, Philadelphia)
Co-authors
Andreas Schaefer
(University of Regensburg)
Daniel Pitonyak
(Temple University, Philadelphia)
Jian Zhou
(University of Regensburg)
Marc Schlegel
(University of Tuebingen)
Werner Vogelsang
(University of Tuebingen)
