Measurements of Branching Fractions for Electromagnetic Transitions Involving the Χ_bj(1p) States

M. Kornicer, R. E. Mitchell,C. M. Tarbert,D. Besson, T. K. Pedlar,D. Cronin-Hennessy,J. Hietala,P. Zweber,S. Dobbs,Z. Metreveli,K. K. Seth,A. Tomaradze,T. Xiao,S. Brisbane,L. Martin,A. Powell,P. Spradlin, G. Wilkinson,H. Mendez,J. Y. Ge,D. H. Miller,I. P. J. Shipsey,B. Xin,G. S. Adams,D. Hu,B. Moziak,J. Napolitano,K. M. Ecklund,J. Insler, H. Muramatsu,C. S. Park, L. J. Pearson,E. H. Thorndike,F. Yang,S. Ricciardi,C. Thomas,M. Artuso,S. Blusk,R. Mountain,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, K. Randrianarivony,G. Tatishvili,R. A. Briere,H. Vogel,P. U. E. Onyisi, J. L. Rosner,J. P. Alexander,D. G. Cassel,S. Das,R. Ehrlich,L. Fields,L. Gibbons,S. W. Gray,D. L. Hartill,B. K. Heltsley,D. L. Kreinick,V. E. Kuznetsov,J. R. Patterson,D. Peterson,D. Riley,A. Ryd,A. J. Sadoff,X. Shi,W. M. Sun,J. Yelton,P. Rubin,N. Lowrey,S. Mehrabyan,M. Selen,J. Wiss,J. Libby

Physical review D Particles, fields, gravitation, and cosmology/Physical review D, Particles, fields, gravitation, and cosmology（2011）

引用 17|浏览54

暂无评分

摘要

Using (9.32, 5.88) million Y(2S; 3S) decays taken with the CLEO III detector, we obtain five product branching fractions for the exclusive processes Y(2S) -> gamma chi(b0,1,2)(1P) -> gamma gamma Y(1S) and Y(3S) -> gamma chi(b1,2)(1P) -> gamma gamma Y(1S). We observe the transition chi(b0)(1P) -> yY(1S) for the first time. Using the known branching fractions for B[Y2S) -> gamma chi(bJ)(1P)], we extract values for B[chi(bJ)(1P) -> gamma Y(1S)] for J = 0, 1, 2. In turn, these values can be used to unfold the Y(3S) product branching fractions to obtain values for B[Y(3S) -> gamma chi(b1,2)(1P)] for the first time individually. Comparison of these with each other and with the branching fraction B[Y(3S) -> gamma chi(b0)] previously measured by CLEO provides tests of relativistic corrections to electric dipole matrix elements.

查看译文

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