psi(2S) Radiative Decay Measurements

Details psi(2S) Radiative Decay Measurements psi(2S) Radiative Decay Measurements

2008-03-20

arxiv.org/abs/0803.2928v2

Physics

High Energy Physics

High Energy Physics - Experiment

14 pages, 20 figures, one number error is corrected

Scientific paper

Using a sample of 14 million $\psip$ events collected with the BESII detector, branching fractions or upper limits on the branching fractions of $\psip$ decays into $\gamma\ppb$, $\gamma 2(\pip\pim)$, $\gamma \kskp$, $\gamma \kap\kam\pip\pim$, $\gamma\kstarz\kam\pip+c.c.$, $\gamma \kstarz \kstarzb$, $\gamma\pip\pim\ppb$, $\gamma2(\kap\kam)$, $\gamma3(\pip\pim)$ and $\gamma2(\pip\pim)\kap\kam$ with hadron invariant mass less than 2.9$\gev/c^2$ are reported. We also report branching fractions of $\psip$ decays into $\gamma\ppb\piz$, $\ppb\piz\piz$, $2(\pip\pim)\piz$, $\omega\pp$, $\omega f_2(1270)$, $b_1^\pm\pi^\mp$, $\piz\kskp$, $K^\pm\rho^\mp\ks$, $\piz2(\pip\pim)\kap\kam$ and $\gamma\piz2(\pip\pim)\kap\kam$.

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