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First measurements of absolute branching fractions of the Xi(+)(c) baryon at Belle

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dc.contributor.authorLi, Y. B.
dc.contributor.authorShen, C. P.
dc.contributor.authorAdachi, I.
dc.contributor.authorAhn, J. K.
dc.contributor.authorMizuk, R.
dc.contributor.authorPakhlov, P.
dc.date.accessioned2024-11-21T11:10:19Z
dc.date.available2024-11-21T11:10:19Z
dc.date.issued2019
dc.description.abstractWe present the first measurements of the absolute branching fractions of Xi(+)(c) decays into Xi(-)pi(+)pi(+) and pK(-)pi(+) final states. Our analysis is based on a data set of (772 +/- 11) x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. We measure the absolute branching fraction of (B) over bar (0) -> (Lambda) over bar (-)(c)Xi(+)(c) with the Xi(+)(c) recoiling against (Lambda) over bar (- )(c)in (B) over bar (0) decays resulting in B((B) over bar (0) -> (Lambda) over bar (-)(c)Xi(+)(c)) = [1.16 +/- 0.42(stat.) +/- 0.15(syst.)] x 10(-3). We then measure the product branching fractions B((B) over bar (0) -> (Lambda) over bar (-)(c)Xi(+)(c))B(Xi(+)(c) -> Xi(-)pi(+)pi(+)) and B((B) over bar (0) -> (Lambda) over bar (-)(c)Xi(+)(c))B(Xi(+)(c) -> pK(-)pi(+)). Dividing these product branching fractions by (B) over bar (0) -> (Lambda) over bar (-)(c)Xi(+)(c) yields B(Xi(+)(c) -> Xi(-)pi(+)pi(+)) = [2.86 +/- 1.21(stat.) +/- 0.38(syst.)]% and B(Xi(+)(c) -> pK(-)pi(+)) = [0.45 +/- 0.21(stat.) +/- 0.07(syst.)]%. Our result for B(Xi(+)(c) -> Xi(-)pi(+)pi(+)) can be combined with Xi(+)(c) branching fractions measured relative to Xi(+)(c) -> Xi(-)pi(+)pi(+) to set the absolute scale for many Xi(+)(c) branching fractions.
dc.identifier.citationFirst measurements of absolute branching fractions of the Xi(+)(c) baryon at Belle / Li, YB [et al.] // Physical Review D. - 2019. - 100. - № 3. - 10.1103/PhysRevD.100.031101
dc.identifier.doi10.1103/PhysRevD.100.031101
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevD.100.031101
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85072552350&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000480390200001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/18563
dc.relation.ispartofPhysical Review D
dc.titleFirst measurements of absolute branching fractions of the Xi(+)(c) baryon at Belle
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue3
oaire.citation.volume100
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