Determination of BR(chicJ --> p p) in psi(2S) decays
J. Z. Bai, BES Collaboration
Abstract
The processes psi(2S) --> gamma chicJ, chicJ --> p pbar (J=0,1,2) are studied using a sample of 14X106 psi(2S) decays collected with the Beijing Spectrometer at the Beijing Electron-Positron Collider. Very clear chic0, chic1 and chic2 signals are observed, and the branching fractions BR(chicJ --> p pbar) (J=0,1,2) are determined to be (27.1+4.3-3.9 4.7)X10-5, (5.7+1.7-1.50.9)X10-5, and (6.5+2.4-2.11.0)X10-5, respectively, where the first errors are statistical and the second are systematic.
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