Recent results on two-photon physics at BABAR
arXiv:0909.3148
Abstract
We present measurements of the gamma gamma* --> pi0 transition form factor for the momentum transfer range Q^2=4-40 GeV^2 and the gamma gamma* --> eta_c transition form factor for the range Q^2=2-50 GeV^2. The results of the measurement of the eta_c mass, total and two-photon widths are also presented.
6 pages, 6 figures; added two references. To appear in the proceedings of the 2009 Europhysics Conference on High Energy Physics, July 16-22, 2009, Krakow, Poland