Cross sections at HERA
arXiv:0905.2034
Abstract
The energy dependence of cross sections is discussed as a way to learn about the dynamics of photon induced interactions at HERA. The question of determining the scale of exclusive electroproduction of vector mesons is addressed.
17 pages, 17 figures, Talk presented at the 2009 Epiphany meeting, Cracow, Jan 5-7, 2009, dedicated to the memory of Jan Kwiecinski. v2: corrected some figure captions