Evidence for decays of hc to multipion final states

G. S. Adams, D. Hu,B. Moziak,J. Napolitano,K. M. Ecklund,J. Insler,H. Muramatsu,E. H. Thorndike, F. Yang,M. Artuso,S. Blusk,S. Khalil, K. Randrianarivony,T. Skwarnicki,S. Stone,J. C. Wang,L. M. Zhang,G. Bonvicini,D. Cinabro,A. Lincoln,M. J. Smith, P. Zhou,J. Zhu,P. Naik, J. Rademacker,D. M. Asner,K. W. Edwards,J. Reed,A. N. Robichaud,G. Tatishvili,E. J. White,R. A. Briere,H. Vogel,P. U. E. Onyisi,CLEO Collaboration,H. Vogel,P. Onyisi,J. Rosner, J. Alexander,D. Cassel,R. Ehrlich,L. Fields, L. Gibbons, S. Gray,D. Hartill, B. Heltsley,J. Hunt,J. Kandaswamy,D. Kreinick,V. Kuznetsov,J. Ledoux,H. Mahlke-Krüger,J. Patterson, D. Peterson, D. Riley, A. Ryd, A. Sadoff, X. Shi,S. Stroiney, W. Sun,T. Wilksen, J. Yelton,P. Rubin, N. Lowrey,S. Mehrabyan,M. Selen,J. Wiss, M. Kornicer, R. Mitchell,M. Shepherd,C. Tarbert, D. Besson,T. Pedlar,J. Xavier,D. Cronin-Hennessy,K. Gao,J. Hietala,T. Klein,R. Poling,P. Zweber,S. Dobbs,Z. Metreveli,K. Seth,B. Tan, A. Tomaradze,S. Brisbane,J. Libby,L. Martin,A. Powell,C. Thomas, G. Wilkinson,H. Mendez,J. Ge,D. Miller, I. Shipsey,B. Xin

PHYSICAL REVIEW D（2009）

引用 32|浏览70

暂无评分

摘要

Using a sample of 2.59 x 10(7) psi(2S) decays collected by the CLEO-c detector, we present results of a search for the decay chain psi(2S) -> pi(0)h(c), h(c) -> n(pi(+)pi(-))pi(0), n = 1, 2, 3. We observe no significant signals for n = 1 and n = 3 and set upper limits for the corresponding decay rates. First evidence for the decay h(c) -> pi(+)pi(-)pi(+)pi(-)pi(0) is presented, and a product branching fraction of B(psi(2S) -> h(c)pi(0)) x B(h(c) -> 2(pi(+)pi(-))pi(0)) = 1.88(-0.45-0.30)(+0.48+0.47) x 10(-5) is measured. This results implies that h(c) -> hadrons and h(c) -> gamma eta(c) have comparable rates, in agreement with expectations.

查看译文

关键词

decay rate

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要