paper

Measurement of the and cross sections using initial-state radiation

arXiv:1704.05009 · doi:10.1103/PhysRevD.95.092005

Abstract

The processes and are studied over a continuum of energies from threshold to 4 GeV with the initial-state photon radiation method. Using 454 fb data collected with the BABAR detector at the SLAC PEP-II storage ring, the first measurements of the cross sections for these processes are obtained. The intermediate resonance structures from , and are studied. The is observed in all of these channels, and corresponding branching fractions are measured.

arXiv comment19 pages, 38 figures

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