Transversity GPD in photo- and electroproduction of two vector mesons - Archive ouverte HAL
Pré-Publication, Document De Travail Année : 2006

Transversity GPD in photo- and electroproduction of two vector mesons

L. Szymanowski
  • Fonction : Auteur

Résumé

The chiral-odd generalized parton distribution (GPD), or transversity GPD, of the nucleon can be accessed experimentally through the photo- or electroproduction of two vector mesons on a polarized nucleon target, gamma* p --> rho_1^0 rho_2^+ n, where rho_1^0 is produced at large transverse momentum, rho_2+ is transversely polarized, and the mesons are separated by a large rapidity gap. We predict the cross section for this process for both transverse and longitudinal rho_2+ production. To this end we propose a model for the transversity GPD H_T(x,xi,t), and give an estimate of the relative sizes of the transverse and longitudinal rho_2^+ cross sections. We show that a dedicated experiment at high energy should be able to measure the transversity content of the proton.

Dates et versions

hal-00017635 , version 1 (24-01-2006)

Identifiants

Citer

R. Enberg, B. Pire, L. Szymanowski. Transversity GPD in photo- and electroproduction of two vector mesons. 2006. ⟨hal-00017635⟩
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