Progress on R measurement through ISR with BaBar
arXiv:hep-ex/0312063 · doi:10.1016/S0920-5632(04)00014-3
Abstract
The status of the ISR analysis with BaBar is presented. Preliminary results are given on the process e+e- --> 2pi+ 2pi- and J/psi decays including a determination of its total width and the branching ratios into 2pi+ 2pi-, K+ K- pi+ pi-, and 2K+ 2K- modes.
6 pages, 6 figures, proceedings of the SIGHAD03 workshop (Pisa, October 2003) on e+e- annihilation cross sections at low energy