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dc.contributor.authorÇetin, Serkant Ali
dc.contributor.authorBESIII Collaboration
dc.date.accessioned2015-04-16T09:22:29Z
dc.date.available2015-04-16T09:22:29Z
dc.date.issued2013-03-05
dc.identifier.citationAblikim, M., Achasov, M. N., Albayrak, O., Ambrose, D. J., An, F. F., An, Q. ... BESIII Collaboration. (2013). Measurements of the branching fractions for J/psi and psi ' -> Lambda(Lambda)over-bar pi(0) and Lambda(Lambda)over-bar eta. Physical Review D, 87 (5). 29p.,https://dx.doi.org/10.1103/PhysRevD.87.052007.en_US
dc.identifier.issn1550-7998
dc.identifier.issn1550-2368
dc.identifier.other000315737200002 (WOS)
dc.identifier.urihttps://dx.doi.org/10.1103/PhysRevD.87.052007
dc.identifier.urihttps://hdl.handle.net/11376/1338
dc.description.abstractWe report on a study of the isospin-violating and isospin-conserving decays of the J/psi and psi' charmonium state to Lambda(Lambda) over bar pi(0) and Lambda(Lambda) over bar eta, respectively. The data are based on 225 million J/psi and 106 million psi' events that were collected with the BESIII detector. The most accurate measurement of the branching fraction of the isospin-violating process J/psi -> Lambda(Lambda) over bar pi(0) is obtained, and the isospin-conserving processes J/psi -> Lambda(Lambda) over bar eta and psi' -> Lambda(Lambda) over bar eta are observed for the first time. The branching fractions are measured to be B(J/psi -> Lambda(Lambda) over bar pi(0)) = (3.78 +/- 0.27(stat) +/- 0.30(sys)) x 10(-5), B(J/psi -> Lambda(Lambda) over bar eta) = (15.7 +/- 0.80(stat) +/- 1.54(sys)) x 10(-5) and B(psi' -> Lambda(Lambda) over bar eta) = (2.48 +/- 0.34(stat) +/- 0.19(sys)) x 10(-5). No significant signal events are observed for psi' -> Lambda(Lambda) over bar pi(0) decay resulting in an upper limit of the branching fraction of B(psi' -> Lambda(Lambda) over bar pi(0)) < 0.29 x 10(-5) at the 90% confidence level. The two-body decay of J/psi -> Sigma(1385)(0)<(Lambda)over bar> + c.c. is searched for, and the upper limit is B(J/psi -> Sigma(1385)(0)(Lambda) over bar + c.c.) < 0.82 x 10(-5) at the 90% confidence level.en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.identifier.doi10.1103/PhysRevD.87.052007en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectDecaysen_US
dc.subjectPuzzleen_US
dc.titleMeasurements of the branching fractions for J/psi and psi ' -> Lambda(Lambda)over-bar pi(0) and Lambda(Lambda)over-bar etaen_US
dc.typearticleen_US
dc.relation.journalPhysical Review Den_US
dc.departmentDoğuş Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.authoridTR3959en_US
dc.identifier.volume87en_US
dc.identifier.issue5en_US
dc.identifier.startpage1en_US
dc.identifier.endpage20en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.institutionauthorÇetin, Serkant Ali


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