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Transverse Target Spin Asymmetries of Exclusive {rho}{sup 0} and {pi}{sup +} Mesons

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.3122155· OSTI ID:21293419
 [1]
  1. DESY, 22603 Hamburg (Germany)
Preliminary measurements are reported on the azimuthal single-spin asymmetries of exclusive {rho}{sup 0} and {pi}{sup +} mesons for a transversely polarized hydrogen target at HERMES using the 27.6 GeV HERA lepton beam. Within the generalized parton distribution (GPD) formalism, hard exclusive vector meson production is sensitive to GPDs H and E, while pseudo-scalar meson production is sensitive to GPDs H-tilde and E-tilde. The extracted sin({phi}-{phi}{sub s}) azimuthal amplitude of the transverse target-spin asymmetry is compared to theoretical calculations based on GPD models.
OSTI ID:
21293419
Journal Information:
AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1105; ISSN APCPCS; ISSN 0094-243X
Country of Publication:
United States
Language:
English