Measurement of the gamma gamma* --> pi0 transition form factor
arXiv:0905.4778 · doi:10.1103/PhysRevD.80.052002
Abstract
We study the reaction e+e- --> e+e-pi0 and measure the gamma gamma* --> pi0 transition form factor in the momentum transfer range from 4 to 40 GeV^2. The analysis is based on 442 fb^-1 of integrated luminosity collected at PEP-II with the BABAR detector at e+e- center-of-mass energies near 10.6 GeV.
19 pages, 23 postscript figures, submitted to Phys. Rev. D