Radiative decays of the Υ(1S) to a pair of charged hadrons

被引：64
|
作者：
Athar, SB [1 ]
Avery, P
Breva-Newell, L
Patel, R
Potlia, V
Stoeck, H
Yelton, J
Rubin, P
Cawlfield, C
Eisenstein, BI
Gollin, GD
Karliner, I
Kim, D
Lowrey, N
Naik, P
Sedlack, C
Selen, M
White, EJ
Williams, J
Wiss, J
Asner, DM
Edwards, KW
Besson, D
Pedlar, TK
Cronin-Hennessy, D
Gao, KY
Gong, DT
Hietala, J
Kubota, Y
Klein, T
Lang, BW
Li, SZ
Poling, R
Scott, AW
Smith, A
Dobbs, S
Metreveli, Z
Seth, KK
Tomaradze, A
Zweber, P
Ernst, J
Arms, K
Severini, H
Dytman, SA
Love, W
Mehrabyan, S
Mueller, JA
Savinov, V
Li, Z
Lopez, A
机构：
[1] Univ Florida, Gainesville, FL 32611 USA
[2] George Mason Univ, Fairfax, VA 22030 USA
[3] Univ Illinois, Urbana, IL 61801 USA
[4] Carleton Univ, Ottawa, ON K1S 5B6, Canada
[5] Univ Kansas, Lawrence, KS 66045 USA
[6] Luther Coll, Decorah, IA 52101 USA
[7] Univ Minnesota, Minneapolis, MN 55455 USA
[8] Northwestern Univ, Evanston, IL 60208 USA
[9] SUNY Albany, Albany, NY 12222 USA
[10] Ohio State Univ, Columbus, OH 43210 USA
[11] Univ Oklahoma, Norman, OK 73019 USA
[12] Univ Pittsburgh, Pittsburgh, PA 15260 USA
[13] Univ Puerto Rico, Mayaguez, PR 00681 USA
[14] Purdue Univ, W Lafayette, IN 47907 USA
[15] Rensselaer Polytech Inst, Troy, NY 12180 USA
[16] Univ Rochester, Rochester, NY 14627 USA
[17] So Methodist Univ, Dallas, TX 75275 USA
[18] Syracuse Univ, Syracuse, NY 13244 USA
[19] Vanderbilt Univ, Nashville, TN 37235 USA
[20] Wayne State Univ, Detroit, MI 48202 USA
[21] CALTECH, Pasadena, CA 91125 USA
[22] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
[23] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[24] Cornell Univ, Ithaca, NY 14853 USA
来源：
PHYSICAL REVIEW D | 2006年 / 73卷 / 03期
关键词：
D O I：
10.1103/PhysRevD.73.032001
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Using data obtained with the CLEO III detector, running at the Cornell Electron Storage Ring (CESR), we report on a new study of exclusive radiative Upsilon(1S) decays into the final states gamma pi(+)pi(-), gamma K+K-, and gamma p (p) over bar. We present branching ratio measurements for the decay modes Upsilon(1S)->gamma f(2)(1270), Upsilon(1S)->gamma f '(2)(1525), and Upsilon(1S)->gamma K+K-; helicity production ratios for f(2)(1270) and f '(2)(1525); upper limits for the decay Upsilon(1S)->gamma f(J)(2200), with f(J)(2220)->pi(+)pi(-), K+K-, p (p) over bar; and an upper limit for the decay Upsilon(1S)->gamma X(1860), with X(1860)->gamma p (p) over bar.
引用
收藏
页数：10
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