期刊
EUROPEAN PHYSICAL JOURNAL A
卷 47, 期 9, 页码 -出版社
SPRINGER
DOI: 10.1140/epja/i2011-11112-6
关键词
-
资金
- Russian Foundation for Basic Research [09-02-01149]
- Heisenberg-Landau program
- BMBF [06RY258]
Estimates for electroproduction of pseudoscalar mesons at small values of skewness are presented. Cross-sections and asymmetries for these processes are calculated within the handbag approach which is based on factorization in hard parton subprocesses and soft generalized parton distributions (GPDs). The latter are constructed from double distributions. Transversity GPDs are taken into account; they are accompanied by twist-3 meson wave functions. For most pseudoscalar-meson channels a combination of (H) over tilde (T) and (H) over bar (T) plays a particularly prominent role. This combination of GPDs, which we constrain by moments obtained from lattice QCD, leads, with the exception of the pi(+) and eta' channels, to large transverse cross-sections.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据