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Progress on R measurement through ISR with BaBar

Michel Davier
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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.

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Michel Davier. 2003-12-31. Progress on R measurement through ISR with BaBar. https://doi.org/10.1016/s0920-5632(04)00014-3

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