Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/597308
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dc.date.accessioned2024-10-23T09:52:13Z-
dc.date.available2024-10-23T09:52:13Z-
dc.identifier.urihttp://hdl.handle.net/10603/597308-
dc.description.abstractWe report the result of a search for the rare decay B0 and#8594; and#947;and#947; using a combined dataset of 753 × 106 B ¯B pairs collected by the Belle experiment and 387 × 106 B ¯B pairs collected by the Belle II experiment at the and#933;(4S) resonance produced in electron-positron collisions. A simultaneous fit to the Belle and Belle II data sets yields 11.0+6.5 newlineand#8722;5.5 signal events. We determine the branching fraction B(B0 and#8594; and#947;and#947;) = (3.7+2.2 newlineand#8722;1.8(stat) ± 0.5(syst)) × 10and#8722;8 with a signal significance of 2.5and#963; and set a 90% newlineconfidence level upper limit of B(B0 and#8594; and#947;and#947;) lt 6.4 × 10and#8722;8. This result improves on the previously published 90% confidence level upper limit by BABAR by a factor of about five and provides the most stringent limit to date.
dc.format.extent
dc.languageEnglish
dc.relation
dc.rightsself
dc.titleStudy of the decay B0 and#8594; and#947; and#947; at Belle and Belle II
dc.title.alternative
dc.creator.researcherMaurya, Shubhangi Krishan
dc.subject.keywordPhysical Sciences
dc.subject.keywordPhysics
dc.subject.keywordPhysics Applied
dc.description.note
dc.contributor.guideBhuyan, Bipul
dc.publisher.placeGuwahati
dc.publisher.universityIndian Institute of Technology Guwahati
dc.publisher.institutionDEPARTMENT OF PHYSICS
dc.date.registered2018
dc.date.completed2024
dc.date.awarded2024
dc.format.dimensions
dc.format.accompanyingmaterialNone
dc.source.universityUniversity
dc.type.degreePh.D.
Appears in Departments:DEPARTMENT OF PHYSICS

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