Journal
EUROPEAN PHYSICAL JOURNAL A
Volume 50, Issue 9, Pages -Publisher
SPRINGER
DOI: 10.1140/epja/i2014-14146-2
Keywords
-
Categories
Funding
- Russian Foundation of Basic Research [12-02-00613]
- Heisenberg-Landau program
- BMBF [OR 06RY9191]
Ask authors/readers for more resources
Exploiting a set of generalized parton distributions (GPDs) derived from analyses of hard exclusive leptoproduction of rho(0), phi and pi(+) mesons, we investigate the omega spin density matrix elements (SDMEs) recently measured by the HERMES Collaboration. It turns out, from our study, that the pion pole is an important contribution to omega production. It will be treated as a one-particle exchange since its evaluation from the GPD (E) over tilde considerably underestimates its contribution. As an intermediate step of our analysis, we extract the pi omega transition form factor for photon virtualities less than 4 GeV2. From our approach we achieve results for the omega SDMEs in good agreement with the HERMES data. The role of the pion pole in exclusive rho(0) and phi leptoproduction is discussed too.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available