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

作者信息

Adam N E, Alexander J P, Berkelman K, Cassel D G, Crede V, Duboscq J E, Ecklund K M, Ehrlich R, Fields L, Galik R S, Gibbons L, Gittelman B, Gray R, Gray S W, Hartill D L, Heltsley B K, Hertz D, Hsu L, Jones C D, Kandaswamy J, Kreinick D L, Kuznetsov V E, Mahlke-Krüger H, Meyer T O, Onyisi P U E, Patterson J R, Peterson D, Phillips E A, Pivarski J, Riley D, Ryd A, Sadoff A J, Schwarthoff H, Shepherd M R, Stroiney S, Sun W M, Urner D, Wilksen T, Weinberger M, Athar S B, Avery P, Breva-Newell L, Patel R, Potlia V, Stoeck H, Yelton J, Rubin P, Cawlfield C, Eisenstein B I, Gollin G D, Karliner I, Kim D, Lowrey N, Naik P, Sedlack C, Selen M, Williams J, Wiss J, Edwards K W, Besson D, Pedlar T K, Cronin-Hennessy D, Gao K Y, Gong D T, Kubota Y, Klein T, Lang B W, Li S Z, Poling R, Scott A W, Smith A, Dobbs S, Metreveli Z, Seth K K, Tomaradze A, Zweber P, Ernst J, Mahmood A H, Severini H, Asner D M, Dytman S A, Love W, Mehrabyan S, Mueller J A, Savinov V, Li Z, Lopez A, Mendez H, Ramirez J, Huang G S, Miller D H, Pavlunin V, Sanghi B, Shibata E I, Shipsey I P J, Adams G S, Chasse M, Cravey M, Cummings J P, Danko I, Napolitano J, He Q, Muramatsu H, Park C S, Park W, Thorndike E H, Coan T E, Gao Y S, Liu F, Artuso M, Boulahouache C, Blusk S, Butt J, Dambasuren E, Dorjkhaidav O, Li J, Menaa N, Mountain R, Nandakumar R, Redjimi R, Sia R, Skwarnicki T, Stone S, Wang J C, Zhang K, Csorna S E, Bonvicini G, Cinabro D, Dubrovin M, Briere R A, Chen G P, Chen J, Ferguson T, Tatishvili G, Vogel H, Watkins M E, Rosner J L

机构信息

Cornell University, Ithaca, New York 14853, USA.

出版信息

Phys Rev Lett. 2005 Jun 17;94(23):232002. doi: 10.1103/PhysRevLett.94.232002.

DOI:10.1103/PhysRevLett.94.232002

PMID:16090461

Abstract

We describe new measurements of the inclusive and exclusive branching fractions for psi(2S) transitions to J/psi using e(+)e(-) collision data collected with the CLEO detector operating at CESR. All branching fractions and ratios of branching fractions reported here represent either the most precise measurements to date or the first direct measurements. Indirectly and in combination with other CLEO measurements, we determine B(chi(cJ) --> gamma(J/psi)) and B[psi(2S) --> light hadrons].

摘要