Photon transitions in Υ(2S) and Υ(3S) decays -: art. no. 032001

被引：54

作者：

Artuso, M ^{[1
]}

Boulahouache, C

Blusk, S

Butt, J

Dambasuren, E

Dorjkhaidav, O

Li, J

Menaa, N

Mountain, R

Muramatsu, H

Nandakumar, R

Redjimi, R

Sia, R

Skwarnicki, T

Stone, S

Wang, JC

Zhang, K

Csorna, SE

Bonvicini, G

Cinabro, D

Dubrovin, M

Bornheim, A

Pappas, SP

Weinstein, AJ

Rosner, JL

Briere, RA

Chen, GP

Ferguson, T

Tatishvili, G

Vogel, H

Watkins, ME

Adam, NE

Alexander, JP

Berkelman, K

Cassel, DG

Crede, V

Duboscq, JE

Ecklund, KM

Ehrlich, R

Fields, L

Galik, RS

Gibbons, L

Gittelman, B

Gray, R

Gray, SW

Hartill, DL

Heltsley, BK

Hertz, D

Hsu, L

Jones, CD

机构：

[1] Syracuse Univ, Syracuse, NY 13244 USA

[2] Vanderbilt Univ, Nashville, TN 37235 USA

[3] Wayne State Univ, Detroit, MI 48202 USA

[4] CALTECH, Pasadena, CA 91125 USA

[5] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[6] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[7] Cornell Univ, Ithaca, NY 14853 USA

[8] Univ Florida, Gainesville, FL 32611 USA

[9] George Mason Univ, Fairfax, VA 22030 USA

[10] Univ Illinois, Urbana, IL 61801 USA

[11] Carleton Univ, Ottawa, ON K1S 5B6, Canada

[12] Inst Particle Phys, Toronto, ON, Canada

[13] Univ Kansas, Lawrence, KS 66045 USA

[14] Luther Coll, Decorah, IA 52101 USA

[15] Univ Minnesota, Minneapolis, MN 55455 USA

[16] Northwestern Univ, Evanston, IL 60208 USA

[17] SUNY Albany, Albany, NY 12222 USA

[18] Ohio State Univ, Columbus, OH 43210 USA

[19] Univ Oklahoma, Norman, OK 73019 USA

[20] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[21] Univ Puerto Rico, Mayaguez, PR 00681 USA

[22] Purdue Univ, W Lafayette, IN 47907 USA

[23] Rensselaer Polytech Inst, Troy, NY 12180 USA

[24] Univ Rochester, Rochester, NY 14627 USA

[25] So Methodist Univ, Dallas, TX 75275 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.94.032001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the inclusive photon spectra in Y(2S) and Y(3S) decays using a large statistics data sample obtained with the CLEO III detector. We present the most precise measurements of electric dipole (E1) photon transition rates and photon energies for Y(2S)-->gammachi(bJ)(1P) and Y(3S)-->gammachi(bJ)(2P) (J=0, 1, 2). We measure the rate for a rare E1 transition Y(3S)-->gammachi(b0)(1P) for the first time. We also set upper limits on the rates for the hindered magnetic dipole (M1) transitions to the eta(b)(1S) and eta(b)(2S) states.

引用

页数：5

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