Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-10-12
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, 3 figures, presented at Transversity 2008, Second International Workshop on Transverse Polarization Phenomena in Har
Scientific paper
Exclusive pi0 electroproduction from nucleons can be related to transversity, the tensor charge, and other quantities related to transversity. This process isolates C-parity odd and chiral odd combinations of t-channel exchange quantum numbers. In a hadronic picture the meson production amplitudes for intermediate energy and Q are determined by C-odd Regge exchanges with final state interactions. The helicity structure for this C-odd process relates to the quark helicity flip, or chiral odd generalized parton distributions (GPDs).Various cross sections and asymmetries will be sensitive to the transversity.
Ahmad Saeed
Goldstein Gary R.
Liuti Simonetta
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