Dalitz Plot Analysis of η_c → K⁺K⁻η and η_c → K⁺K⁻π⁰ in Two-Photon Interactions

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dc.contributor.ORCID56366505900 (Lou, X)en_US
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.authorGrauges, E.en_US
dc.contributor.authorPalano, A.en_US
dc.contributor.authorEigen, G.en_US
dc.contributor.authorStugu, B.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLou, Xinchouen_US
dc.contributor.utdAuthorLou, Xinchouen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.date.accessioned2014-11-10T22:59:41Z
dc.date.available2014-11-10T22:59:41Z
dc.date.created2014-06-16en_US
dc.date.issued2014-06-16en_US
dc.description.abstractWe study the processes γγ→K⁺K⁻η and γγ→K⁺K⁻π⁰ using a data sample of 519 fb⁻¹ recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e⁺e⁻ collider at center-of-mass energies at and near the Υ(nS) (n = 2, 3, 4) resonances. We observe η_c → K⁺K⁻π⁰ and η_c → K⁺K⁻η decays, measure their relative branching fraction, and perform a Dalitz plot analysis for each decay. We observe the K₀*(1430) → K η decay and measure its branching fraction relative to the K π decay mode to be R(K₀*(1430)) = ℬ(K₀*(1430) → K η) / ℬ(K₀*(1430) → K π) = 0.092 ± 0.025_(-0.025)^(+0.010). The η_c → K⁺K⁻η and K₀*(1430) → Kη results correspond to the first observations of these channels. The data also show evidence for η_c(2S) → K⁺K⁻π⁰ and first evidence for η_c(2S) → K⁺K⁻η.en_US
dc.identifier.bibliographicCitationLees, J. P., V. Poireau, V. Tisserand, E. Grauges, et al. 2014. "Dalitz plot analysis of η_c → K⁺K⁻η and η_c → K⁺K⁻π⁰ in two-photon interactions." Physical Review D 89(11), doi:10.1103/PhysRevD.89.112004en_US
dc.identifier.issn1550-7998en_US
dc.identifier.issue11en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/4160
dc.identifier.volume89en_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevD.89.112004
dc.rights©2014 American Physical Societyen_US
dc.sourcePhysical Review D
dc.subjectDalitz plotsen_US
dc.subjectBranching fractions (Nuclear physics)en_US
dc.subjectKaonsen_US
dc.subjectPionsen_US
dc.subjectMesons--Decayen_US
dc.titleDalitz Plot Analysis of η_c → K⁺K⁻η and η_c → K⁺K⁻π⁰ in Two-Photon Interactionsen_US
dc.typeTexten_US
dc.type.genreArticleen_US

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Lou, Xinchou
Izen, Joseph M.