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Measurement of Prominent eta-Decay Branching Fractions | | A Lopez
; S Mehrabyan
; H Mendez
; J Ramirez
; J Y Ge
; D H Miller
; B Sanghi
; I P J Shipsey
; B Xin
; G S Adams
; M Anderson
; J P Cummings
; I Danko
; D Hu
; B Moziak
; J Napolitano
; Q He
; J Insler
; H Muramatsu
; C S Park
; E H Thorndike
; F Yang
; M Artuso
; S Blusk
; S Khalil
; J Li
; N Menaa
; R Mountain
; S Nisar
; K Randrianarivony
; R Sia
; T Skwarnicki
; S Stone
; J C Wang
; G Bonvicini
; D Cinabro
; M Dubrovin
; A Lincoln
; D M Asner
; K W Edwards
; P Naik
; R A Briere
; T Ferguson
; G Tatishvili
; H Vogel
; M E Watkins
; J L Rosner
; N E Adam
; J P Alexander
; D G Cassel
; J E Duboscq
; 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
; D Mohapatra
; P U E Onyisi
; J R Patterson
; D Peterson
; D Riley
; A Ryd
; A J Sadoff
; X Shi
; S Stroiney
; W M Sun
; T Wilksen
; S B Athar
; R Patel
; J Yelton
; P Rubin
; B I Eisenstein
; I Karliner
; N Lowrey
; M Selen
; E J White
; J Wiss
; R E Mitchell
; M R Shepherd
; D Besson
; T K Pedlar
; D Cronin-Hennessy
; K Y Gao
; J Hietala
; Y Kubota
; T Klein
; B W Lang
; R Poling
; A W Scott
; P Zweber
; S Dobbs
; Z Metreveli
; K K Seth
; A Tomaradze
; J Ernst
; K M Ecklund
; H Severini
; W Love
; V Savinov
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; | | Date: |
21 Sep 2007 | | Journal: | Phys Rev Lett, 99 (12), 122001 | | Abstract: | The decay psi(2S)-->etaJ/psi is used to measure, for the first time, all prominent eta-meson branching fractions with the same experiment in the same dataset, thereby providing a consistent treatment of systematics across branching fractions. We present results for eta decays to gammagamma, pi;{+}pi;{-}pi;{0}, 3pi;{0}, pi;{+}pi;{-}gamma and e;{+}e;{-}gamma, accounting for 99.9% of all eta decays. The precision of several of the branching fractions and their ratios is improved. Two channels, pi;{+}pi;{-}gamma and e;{+}e;{-}gamma, show results that differ at the level of three standard deviations from those previously determined. | | Source: | PubMed, pmid17930497 | | Services: | Forum | Review | Favorites | |
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