arXiv:hep-ph/0102134·v1·High Energy Physics — Phenomenology
The p_T Spectrum in Heavy-Flavour Photoproduction
M. Cacciari🇺🇸 · S. Frixione🇮🇹 · P. Nason🇮🇹
Abstract
We consider the transverse-momentum distribution of heavy flavours in photon-hadron collisions. We present a formalism in which large transverse-momentum logarithms are resummed to the next-to-leading level, and mass effects are included exactly up to order alpha_em alpha_s^2, so as to retain predictivity at both small and large transverse momenta. Phenomenological applications relevant to charm photoproduction at HERA are given.
Comments: 26 pages, Latex, epsfig, 15 figures. Submitted to JHEP