Display options
Share it on

Phys Rev Lett. 2006 Mar 10;96(9):092003. doi: 10.1103/PhysRevLett.96.092003. Epub 2006 Mar 09.

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

Physical review letters

J L Rosner, N E Adam, J P Alexander, K Berkelman, D G Cassel, J E Duboscq, K M Ecklund, R Ehrlich, L Fields, R S Galik, L Gibbons, R Gray, S W Gray, D L Hartill, B K Heltsley, D Hertz, C D Jones, J Kandaswamy, D L Kreinick, V E Kuznetsov, H Mahlke-Krüger, T O Meyer, P U E Onyisi, J R Patterson, D Peterson, E A Phillips, J Pivarski, D Riley, A Ryd, A J Sadoff, H Schwarthoff, X Shi, S Stroiney, W M Sun, T Wilksen, M Weinberger, S B Athar, P Avery, L Breva-Newell, R Patel, V Potlia, H Stoeck, J Yelton, P Rubin, C Cawlfield, B I Eisenstein, I Karliner, D Kim, N Lowrey, P Naik, C Sedlack, M Selen, E J White, J Wiss, M R Shepherd, D Besson, T K Pedlar, D Cronin-Hennessy, K Y Gao, D T Gong, J Hietala, Y Kubota, T Klein, B W Lang, R Poling, A W Scott, A Smith, S Dobbs, Z Metreveli, K K Seth, A Tomaradze, P Zweber, J Ernst, K Arms, H Severini, S A Dytman, W Love, S Mehrabyan, V Savinov, O Aquines, Z Li, A Lopez, H Mendez, J Ramirez, G S Huang, D H Miller, V Pavlunin, B Sanghi, I P J Shipsey, B Xin, G S Adams, M Anderson, J P Cummings, I Danko, J Napolitano, Q He, J Insler, H Muramatsu, C S Park, E H Thorndike, T E Coan, Y S Gao, F Liu, R Stroynowski, M Artuso, S Blusk, J Butt, J Li, N Menaa, R Mountain, S Nisar, K Randrianarivony, R Redjimi, R Sia, T Skwarnicki, S Stone, J C Wang, K Zhang, S E Csorna, G Bonvicini, D Cinabro, M Dubrovin, A Lincoln, D M Asner, K W Edwards, R A Briere, J Chen, T Ferguson, G Tatishvili, H Vogel, M E Watkins,

Affiliations

  1. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA.

PMID: 16606256 DOI: 10.1103/PhysRevLett.96.092003

Abstract

We determine the dielectron widths of the Gamma(1S), Gamma(2S), and Gamma(3S) resonances with better than 2% precision by integrating the cross section of e+e- -->Gamma over the e+e- center-of-mass energy. Using e+e- energy scans of the Gamma resonances at the Cornell Electron Storage Ring and measuring Gamma 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 Gamma(1S), Gamma(2S), and Gamma(3S), respectively.

Publication Types