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Evidence for the decay ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- EVIDENCE for the DECAY ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- ... LI Y. et al.

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dc.contributor.authorLi, Y.
dc.contributor.authorTang, S. S.
dc.contributor.authorJia, S.
dc.contributor.authorShen, C. P.
dc.contributor.authorPakhlov, P.
dc.date.accessioned2024-11-29T20:35:44Z
dc.date.available2024-11-29T20:35:44Z
dc.date.issued2021
dc.description.abstract© 2021 authors. Published by the American Physical Society.Using a data sample of 980 fb-1 collected with the Belle detector operating at the KEKB asymmetric-energy e+e- collider, we present evidence for the ω(2012)- in the resonant substructure of ωc0→π+(K̄Ξ)- ((K̄Ξ)-=K-Ξ0+K̄0Ξ-) decays. The significance of the ω(2012)- signal is 4.2σ after considering the systematic uncertainties. The ratio of the branching fraction of ωc0→π+ω(2012)-→π+(K̄Ξ)- relative to that of ωc0→π+ω- is calculated to be 0.220±0.059(stat.)±0.035(syst.). The individual ratios of the branching fractions of the two isospin modes are also determined and found to be B(ωc0→π+ω(2012)-)×B(ω(2012)-→K-Ξ0)/B(ωc0→π+K-Ξ0)=(9.6±3.2(stat.) ±1.8(syst.))% and B(ωc0→π+ω(2012)-)×B(ω(2012)-→K̄0Ξ-)/B(ωc0→π+K̄0Ξ-)=(5.5±2.8(stat.) ±0.7(syst.))%.
dc.identifier.citationEvidence for the decay ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- EVIDENCE for the DECAY ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- ... LI Y. et al. / Li, Y. [et al.] // Physical Review D. - 2021. - 104. - № 5. - 10.1103/PhysRevD.104.052005
dc.identifier.doi10.1103/PhysRevD.104.052005
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevD.104.052005
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85114895520&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000696019400002
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/24712
dc.relation.ispartofPhysical Review D
dc.titleEvidence for the decay ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- EVIDENCE for the DECAY ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- ... LI Y. et al.
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue5
oaire.citation.volume104
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