Determination of BR(chicJ --> p p) in psi(2S) decays
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.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.