Branching Fractions for Transitions of psi(2S) to J/psi

Details Branching Fractions for Transitions of psi(2S) to J/psi Branching Fractions for Transitions of psi(2S) to J/psi

2008-04-28

arxiv.org/abs/0804.4432v2

Phys.Rev.D78:011102,2008

Physics

High Energy Physics

High Energy Physics - Experiment

15 pages, available through http://www.lns.cornell.edu/public/CLNS/, published version

Scientific paper

10.1103/PhysRevD.78.011102

We report determination of branching fractions for the decays psi(2S) --> h + J/psi, where h=any, pi+pi-, pi0pi0, eta, pi0, and gamma gamma through chi_{c0,1,2}. These measurements use 27M psi(2S) decays produced in e+e- collision data collected with the CLEO detector. The resulting branching fractions and ratios thereof improve upon previously achieved precision in all cases, and in combination with other measurements permit determination of B(chi_cJ --> gamma J/psi) and B(psi(2S) --> light hadrons).

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