TY - GEN
T1 - Di-electron widths of the Υ(1S, 2S, 3S) resonances
AU - Pivarski, J.
PY - 2006
Y1 - 2006
N2 - 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.
AB - 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.
KW - Upsilon bottomonium di-electron di-lepton partial width resonance scan
UR - http://www.scopus.com/inward/record.url?scp=33846339715&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33846339715&partnerID=8YFLogxK
U2 - 10.1063/1.2220241
DO - 10.1063/1.2220241
M3 - Conference contribution
AN - SCOPUS:33846339715
SN - 0735403384
SN - 9780735403383
T3 - AIP Conference Proceedings
SP - 252
BT - PARTICLES AND NUCLEI
T2 - PARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei
Y2 - 23 October 2005 through 30 October 2005
ER -