QCD factorization beyond leading twist in exclusive rho(T) meson production
arXiv:0904.1482
Abstract
We describe hard exclusive processes involving a transversally polarized rho meson in the twist 3 approximation, in a framework based on the Taylor expansion of the amplitude around the dominant light-cone direction.
8 pages, 2 figures, proceedings of the Cracow Epiphany Conference on Hadron Interactions at the Dawn of LHC Era. Dedicated to the memory of Jan Kwiecinski. 5-7 January 2009