Study of pi + pi - transitions from the Upsilon (3S) and a search for the hb.

Brock, Ferguson, Vogel, Bebek, Berkelman, Blucher, Byrd, Cassel, Cheu, Coffman, Copie, Crawford, DeSalvo, DeWire, Ehrlich, Galik, Gittelman, Gray, Halling, Hartill, Heltsley, Kandaswamy,Kowalewski, Kreinick,Kubota, Lewis, Mistry,Mueller, Namjoshi, Nandi, Nordberg,Perticone, Peterson, Pisharody, Riley, Silverman, Stone, Worris, Sadoff,Avery, Besson, Garren,Yelton,Bowcock, Kinoshita, Pipkin, Procario,Wilson,Wolinski, Xiao, Jawahery, Park, Poling,Fulton, Haas, Hempstead,Jensen,Johnson, Kagan, Kass,Morrow,Whitmore, Baringer, McIlwain

PHYSICAL REVIEW D（1991）

引用 54|浏览35

暂无评分

摘要

We have investigated the transitions UPSILON(3S)-->pi+pi-UPSILON(1S), UPSILON(3S)-->pi+pi-UPSILON(2S) and the cascade process UPSILON(3S)-->UPSILON(2S)+X,UPSILON(2S)-->pi+pi-UPSILON(1S), both in the exclusive decay mode, with the daughter UPSILON state decaying into two leptons, and in the inclusive decay mode, with the daughter UPSILON state decaying hadronically. Results are presented on the branching fractions and properties of the pi+pi- system. The pi+pi- invariant-mass spectra for the decays UPSILON(3S)-->pi+pi-UPSILON(1S) and UPSILON(3S)-->pi+pi-UPSILON(2S) are measured and compared with theoretical predictions. We also present the results of a search for the h(b)(1(1)P1) and UPSILON(1 3D) states in inclusive UPSILON(3S) decays, and for the exclusive decay UPSILON(3S)-->eta-UPSILON(1S).

查看译文

关键词

mass spectra

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