Branching fractions for transitions of psi(2S) to J/psi

作者：Mendez H^*; Ge J Y; Miller D H; Shipsey I P J; Xin B; Adams G S; Anderson M; Cummings J P; Danko I; Hu D; Moziak B; Napolitano J; He Q; Insler J; Muramatsu H; Park C S; Thorndike E H; Yang F; Artuso M; Blusk S; Khalil S; Li J; Mountain R; Nisar S; Randrianarivony K; Sultana N; Skwarnicki T; Stone S; Wang J C; Zhang L M; Bonvicini G; Cinabro D; Dubrovin M; Lincoln A; Naik P; Rademacker J; Asner D M; Edwards K W

来源：Physical Review D - Particles, Fields, Gravitation and Cosmology, 2008, 78(1): 011102.

DOI：10.1103/PhysRevD.78.011102

We report determination of branching fractions for the decays psi(2S)-> h+J/psi, where h=any, pi(+)pi(-), pi(0)pi(0), eta, pi(0), 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).

• 出版日期2008-7
• 单位西北大学