Di-electron widths of the Υ(1S, 2S, 3S) resonances

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We determine the di-electron widths of the Υ(1S), Υ(2S), and Υ(3S) resonances with better than 2% precision by integrating the cross-section of e+e- → Υ over the e +e- center-of-mass energy. Using e+e - energy scans of the Υ resonances at the Cornell Electron Storage Ring and measuring Υ production with the CLEO detector, we find di-electron widths of 1.252 ± 0.004 (σstat) ± 0.019 (σsyst) keV, 0.581 ± 0.004 ± 0.009 keV, and 0.413 ± 0.004 ± 0.006 keV for the Υ(1S), Υ(2S), and Υ(3S), respectively.

Original languageEnglish (US)
Title of host publicationPARTICLES AND NUCLEI
Subtitle of host publicationSeventeenth Internatinal Conference on Particles and Nuclei
Pages252
Number of pages1
DOIs
StatePublished - 2006
Externally publishedYes
EventPARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei - Santa Fe, NM, United States
Duration: Oct 23 2005Oct 30 2005

Publication series

NameAIP Conference Proceedings
Volume842
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferencePARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei
Country/TerritoryUnited States
CitySanta Fe, NM
Period10/23/0510/30/05

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Keywords

  • Upsilon bottomonium di-electron di-lepton partial width resonance scan

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