Observation of chicJ radiative decays to light vector mesons
Abstract
Using a total of 2.74 x 107 decays of the psi(2S) collected with the CLEO-c detector, we present a study of chicJ -> gamma V, where V = rho0, omega, phi. The transitions chic1 -> gamma rho0 and chic1 -> gamma omega are observed with B(chic1 -> gamma rho0) = (2.43 +- 0.19 +- 0.22) x 10-4 and B(chic1 -> gamma omega) = (8.3 +- 1.5 +- 1.2) x 10-5. In the chic1 -> gamma rho0 transition, the final state meson is dominantly longitudinally polarized. Upper limits on the branching fractions of other chicJ states to light vector mesons are presented.
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