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

页数：10

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