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dc.contributor.authorBesson, David Zeke
dc.date.accessioned2007-04-13T20:09:00Z
dc.date.available2007-04-13T20:09:00Z
dc.date.issued2006-03
dc.identifier.citationAdam, N,; Alexander, JP, et al. Observation of psi(3770)->pi pi J/psi and measurement of Gamma(ee)[psi(2S)]. PHYSICAL REVIEW LETTERS. March 2006. 96(8)
dc.identifier.urihttp://hdl.handle.net/1808/1424
dc.description.abstractWe observe signals for the decays psi(3770)-> XJ/psi from data acquired with the CLEO detector operating at the CESR e(+)e(-) collider with root s=3773 MeV. We measure the following branching fractions B(psi(3770)-> XJ/psi) and significances: (189 +/- 20 +/- 20)x10(-5) (11.6 sigma) for X=pi(+)pi(-), (80 +/- 25 +/- 16)x10(-5) (3.4 sigma) for X=pi(0)pi(0), and (87 +/- 33 +/- 22)x10(-5) (3.5 sigma) for X=eta, where the errors are statistical and systematic, respectively. The radiative return process e(+)e(-)->gamma psi(2S) populates the same event sample and is used to measure Gamma(ee)[psi(2S)]=(2.54 +/- 0.03 +/- 0.11) keV.
dc.language.isoen_US
dc.publisherAMERICAN PHYSICAL SOC
dc.relation.isversionofhttp://publish.aps.org/
dc.titleObservation of psi(3770)->pi pi J/psi and measurement of Gamma(ee)[psi(2S)]
dc.typeArticle
dc.rights.accessrightsopenAccess


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