Spin effects in hard exclusive electroproduction of mesons

Abstract

In this talk various spin effects in hard exclusive electroproduction of mesons are briefly reviewed. The data are discussed in the light of recent theoretical calculations within the frame work of the handbag approach.

Comments: 11 pages, 12 figures, using Latex, talk presented at the conference in honor of Prof. A. Efremov's 75th birthday held at Trento, July, 2009