Study of the Reaction e⁺e⁻ -→ J/ψ π⁺π⁻ via Initial-State Radiation at BABAR

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dc.contributor.ORCID0000-0003-0867-2189 (Lou, X)
dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorLees, J. P.en_US
dc.contributor.authorPoireau, V.en_US
dc.contributor.authorTisserand, V.en_US
dc.contributor.authorGarra Tico, J.en_US
dc.contributor.authorGrauges, E.en_US
dc.contributor.authorPalano, A.en_US
dc.contributor.authorEigen, G.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLou, Xinchouen_US
dc.contributor.authorBaBar Collaborationen_US
dc.contributor.utdAuthorLou, Xinchouen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.date.accessioned2014-03-19T19:17:20Z
dc.date.available2014-03-19T19:17:20Z
dc.date.created2012-09-12en_US
dc.date.issued2012-09-12en_US
dc.description.abstractWe study the process e⁺e⁻ → J/ψ π⁺π⁻ with initial-state-radiation events produced at the PEP-II asymmetric-energy collider. The data were recorded with the BABAR detector at center-of-mass energies 10.58 and 10.54 GeV, and correspond to an integrated luminosity of 454 fb⁻¹. We investigate the J/ψ π⁺π⁻ mass distribution in the region from 3.5 to 5.5 GeV/c². Below 3.7 GeV/c² the ψ(2S) signal dominates, and above 4 GeV/c² there is a significant peak due to the Y(4260). A fit to the data in the range 3.74-5.50 GeV/c² yields a mass value 4245 ±5(stat) ±4(syst) MeV/c² and a width value 114{_-15 ^{+16}} (stat) ±7(syst) MeV for this state. We do not confirm the report from the Belle Collaboration of a broad structure at 4.01 GeV/c². In addition, we investigate the π⁺π⁻ system which results from Y(4260) decay.en_US
dc.identifier.bibliographicCitationLees, J. P., V. Poireau, V. Tisserand, J. Garra Tico, et al. 2012. "Study of the reaction e⁺e⁻ -→ J/ψ π⁺π⁻ via initial-state radiation at BABAR." Physical Review D - Particles, Fields, Gravitation and Cosmology 86(5), doi:10.1103/PhysRevD.86.051102en_US
dc.identifier.issn1550-7998en_US
dc.identifier.issue5en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/3175
dc.identifier.volume86en_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevD.86.051102
dc.rights© 2012 American Physical Societyen_US
dc.sourcePhysical Review D - Particles, Fields, Gravitation and Cosmology
dc.subjectBelle Collaborationen_US
dc.subjectRadiationen_US
dc.titleStudy of the Reaction e⁺e⁻ -→ J/ψ π⁺π⁻ via Initial-State Radiation at BABARen_US
dc.typeTexten_US
dc.type.genreArticleen_US

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Lou, Xinchou
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