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Search for the B -> Y(4260)K, Y(4260) -> J/psi pi(+)pi(-) decays

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dc.contributor.authorGarg, R.
dc.contributor.authorBhardwaj, V.
dc.contributor.authorSingh, J. B.
dc.contributor.authorAdachi, I.
dc.contributor.authorMizuk, R.
dc.contributor.authorPakhlov, P.
dc.date.accessioned2024-11-20T11:10:53Z
dc.date.available2024-11-20T11:10:53Z
dc.date.issued2019
dc.description.abstractWe report the results of a search for the B -> Y(4260)K, Y(4260) -> J/psi pi(+)pi thorn p-decays. This study is based on a data sample corresponding to an integrated luminosity of 711 fb(-1), collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We investigate the J/psi pi(+)pi(-) thorn p-invariant mass distribution in the range 4.0 to 4.6 GeV/c(2) using both B+ -> J/psi pi(+)pi K--(+) and B-0 -> J/psi pi(+)pi K--(S)0 decays. We find excesses of events above the background levels, with significances of 2.1 and 0.9 standard deviations for charged and neutral B -> Y(4260)K decays, respectively, taking into account the systematic uncertainties. These correspond to upper limits on the product of branching fractions, B(B+ -> Y(4260)K+) x B(Y(4260) -> J/psi pi(+)pi(-)) < 1.4 x 10(-5) and B(B-0 -> Y(4260)K-0) x B(Y(4260) -> J/psi pi(+)pi(-)) < 1.7 x 10(-5) at the 90% confidence level.
dc.identifier.citationSearch for the B -> Y(4260)K, Y(4260) -> J/psi pi(+)pi(-) decays / Garg, R [et al.] // Physical Review D. - 2019. - 99. - № 7. - 10.1103/PhysRevD.99.071102
dc.identifier.doi10.1103/PhysRevD.99.071102
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevD.99.071102
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85065197551&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000464742700001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/16916
dc.relation.ispartofPhysical Review D
dc.titleSearch for the B -> Y(4260)K, Y(4260) -> J/psi pi(+)pi(-) decays
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue7
oaire.citation.volume99
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relation.isOrgUnitOfPublication.latestForDiscoveryba0b4738-e6bd-4285-bda5-16ab2240dbd1
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