Dielectron widths of the Υ(1S,2S,3S) resonances

被引：25

作者：

Rosner, JL ^{[1
]}

Adam, NE

Alexander, JP

Berkelman, K

Cassel, DG

Duboscq, JE

Ecklund, KM

Ehrlich, R

Fields, L

Galik, RS

Gibbons, L

Gray, R

Gray, SW

Hartill, DL

Heltsley, BK

Hertz, D

Jones, CD

Kandaswamy, J

Kreinick, DL

Kuznetsov, VE

Mahlke-Krüger, H

Meyer, TO

Onyisi, PUE

Patterson, JR

Peterson, D

Phillips, EA

Pivarski, J

Riley, D

Ryd, A

Sadoff, AJ

Schwarthoff, H

Shi, X

Stroiney, S

Sun, WM

Wilksen, T

Weinberger, M

Athar, SB

Avery, P

Breva-Newell, L

Patel, R

Potlia, V

Stoeck, H

Yelton, J

Rubin, P

Cawlfield, C

Eisenstein, BI

Karliner, I

Kim, D

Lowrey, N

Naik, P

机构：

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

[2] Cornell Univ, Ithaca, NY 14853 USA

[3] Univ Florida, Gainesville, FL 32611 USA

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

[5] Univ Illinois, Urbana, IL 61801 USA

[6] Indiana Univ, Bloomington, IN 47405 USA

[7] Univ Kansas, Lawrence, KS 66045 USA

[8] Luther Coll, Iowa City, IA 52101 USA

[9] Univ Minnesota, Minneapolis, MN 55455 USA

[10] Northwestern Univ, Evanston, IL 60208 USA

[11] SUNY Albany, Albany, NY 12222 USA

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

[13] Univ Oklahoma, Norman, OK 73019 USA

[14] Univ Pittsburgh, Pittsburgh, PA 15260 USA

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

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

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

[18] Univ Rochester, Rochester, NY 14627 USA

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

[20] Syracuse Univ, Syracuse, NY 13244 USA

[21] Vanderbilt Univ, Nashville, TN 37235 USA

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

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

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

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 09期

基金：

美国国家卫生研究院;

关键词：

Electron energy levels;

D O I：

10.1103/PhysRevLett.96.092003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We determine the dielectron widths of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) resonances with better than 2% precision by integrating the cross section of e(+)e(-)->Upsilon over the e(+)e(-) center-of-mass energy. Using e(+)e(-) energy scans of the Upsilon resonances at the Cornell Electron Storage Ring and measuring Upsilon production with the CLEO detector, we find dielectron widths of 1.252 +/- 0.004(sigma(stat))+/- 0.019(sigma(syst)) keV, 0.581 +/- 0.004 +/- 0.009 keV, and 0.413 +/- 0.004 +/- 0.006 keV for the Upsilon(1S), Upsilon(2S), and Upsilon(3S), respectively.

引用

页码：1 / 5

页数：5

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