Determining the upper limit of Gamma_{ee} for the Y(4260)

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dc.creatorMo, X. H.
dc.creatorLi, G.
dc.creatorYuan, C. Z.
dc.creatorHe, K. L.
dc.creatorHu, H. M.
dc.creatorHu, J. H.
dc.creatorWang, P.
dc.creatorWang, Z. Y.
dc.date2006-03-13
dc.date2006-07-31
dc.date.accessioned2026-07-07T10:28:37Z
dc.date.available2026-07-07T10:28:37Z
dc.descriptionBy fitting the R values between 3.7 and 5.0 GeV measured by the BES collaboration, the upper limit of the electron width of the newly discovered resonance Y(4260) is determined to be 580 eV at 90% C.L. Together with the BABAR measurement on the product of Gamma_{ee} and BR(Y(4260) --> pi+pi- J/psi), this implies a large decay width of Y(4260) --> pi+pi- J/psi final states.
dc.description8 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/hep-ex/0603024
dc.identifierhttp://arxiv.org/abs/hep-ex/0603024
dc.identifierPhys.Lett.B640:182-187,2006
dc.identifierdoi:10.1016/j.physletb.2006.07.060
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177508
dc.subjectHigh Energy Physics - Experiment
dc.titleDetermining the upper limit of Gamma_{ee} for the Y(4260)
dc.typetext

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