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dc.contributor.authorAmmar, Raymond G.
dc.contributor.authorBaringer, Philip S.
dc.contributor.authorBean, Alice
dc.contributor.authorBesson, David Zeke
dc.contributor.authorCoppage, Don
dc.contributor.authorDavis, Robin E. P.
dc.contributor.authorKotov, S.
dc.contributor.authorKravchenko, I.
dc.contributor.authorKwak, Nowhan
dc.contributor.authorZhou, X.
dc.date.accessioned2007-04-11T21:14:17Z
dc.date.available2007-04-11T21:14:17Z
dc.date.issued2000-01
dc.identifier.citationBriere, RA, Behrens, BH, et al. Search for rare and forbidden eta ' decays. AMERICAN PHYSICAL SOC. January 2000. 84(1) : 26-30
dc.identifier.otherhttp://publish.aps.org/
dc.identifier.urihttp://hdl.handle.net/1808/1364
dc.description.abstractWe have searched for rare and forbidden decays of the eta' meson in hadronic events at the CLEO II detector. The search is conducted on 4.80 fb(-1) of e(+)e(-) collisions at 10.6 GeV center-of-mass energy at the Cornell Electron Storage Ring. We find no signals, and set 90% confidence level upper limits of their branching fractions: B(eta' --> e(+)e(-)eta) < 2.4 x 10(-3), B(eta' --> e(+)e(-) pi(0)) < 1.4 x 10(-3), B(eta' --> e(+)e(-) gamma) < 0.9 x 10(-3), and B(eta' --> e mu) < 4.7 x 10(-4). We also fit the matrix element of the eta' --> pi(+)pi(-) eta Dalitz plot with the parametrization \M\(2) = A\1 + alpha gamma\(2), where gamma is a linear function of the kinetic energy of the eta, and find Re(alpha) =-0.021 +/- 0.025.
dc.language.isoen_US
dc.publisherAMERICAN PHYSICAL SOC
dc.titleSearch for rare and forbidden eta ' decays
dc.typeArticle
dc.rights.accessrightsopenAccess


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