arXiv:hep-ph/0010182·v1·High Energy Physics — Phenomenology
gamma* gamma -> pi pi at large Q^2
Markus Diehl🇺🇸 · Thierry Gousset🇫🇷 · Bernard Pire🇫🇷
Abstract
The QCD analysis of the process gamma* gamma -> pi pi at large Q^2 and small center-of-mass energy allows one to access a new hadronic observable describing the exclusive transition from a q qbar or g g state to a pair of mesons. A fruitful study may be envisaged at existing machines.
Comments: 7 pages, to appear in the Proceedings of PHOTON 2000, Ambleside, England, August 2000