Spin Dependence of Diffractive Vector Meson Production
高能物理 - 唯象学
2007-05-23 v2
摘要
I review the recent progress in the theory of s-channel helicity nonconservation (SCHNC) effects in diffractive DIS. SCHNC in diffractive vector meson production is an unique probe of the spin-orbit coupling and Fermi motion of quarks in vector mesons. Photo- and electroproduction of the and its radial and angular excitations at Jlab is perfectly posed to probe SCHNC in QCD pomeron exchange. I also discuss the unitarity driven demise of the Burkhardt-Cottingham sum rule and large & scaling departure from the Wandzura-Wilczek relation.
引用
@article{arxiv.hep-ph/9908453,
title = {Spin Dependence of Diffractive Vector Meson Production},
author = {N. N. Nikolaev},
journal= {arXiv preprint arXiv:hep-ph/9908453},
year = {2007}
}
备注
8 pages, 3 figures. Joint INT / Jefferson Lab Workshop on `Exclusive And Semiexclusive Processes At High Momentum Transfer', JLab, 20-22 May 1999. Several typos corrected, one reference added