Publication: Measurements of the branching fractions B(B- -> (Lambda)over-bar(c)(-)Xi(0)(c)), B(B- -> (Lambda)over-bar(c)(-)Xi(c )(2645)(0)) and B(B- -> (Lambda)over-bar(c)(-)Xi(c)(2790)(0))
Дата
2019
Авторы
Li, Y.
Li, Y. B.
Shen, C. P.
Adachi, I.
Pakhlov, P.
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Volume Title
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Аннотация
Using the data sample of 711 fb(-1) of Upsilon(4S) on-resonance data taken by the Belle detector at the KEKB asymmetric-energy electron-positron collider, we present the first measurements of branching fractions of the decays B- -> (Lambda) over bar (-)(c)Xi'(0)(c), B- -> (Lambda) over bar (-)(c)Xi(c)(2645)(0), and B- -> (Lambda) over bar (-)(c)Xi(c)(2790)(0). The signal yields for these decays are extracted from the recoil mass spectrum of the system recoiling against (Lambda) over bar (-)(c) baryons in selected B- candidates. The branching fraction of B- -> (Lambda) over bar (-)(c)Xi(c)(2790)(0) is measured to be (1.1 +/- 0.4 +/- 0.2) x 10(-3), where the first uncertainty is statistical and the second is systematic. The 90% credibility level upper limits on B(B- -> (Lambda) over bar (-)(c)Xi'(0)(c)) and B(B- -> (Lambda) over bar (-)(c)Xi(c)(2645)(0)) are determined to be 6.5 x 10(-4) and 7.9 x 10(-4), respectively.
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Цитирование
Measurements of the branching fractions B(B- -> (Lambda)over-bar(c)(-)Xi(0)(c)), B(B- -> (Lambda)over-bar(c)(-)Xi(c )(2645)(0)) and B(B- -> (Lambda)over-bar(c)(-)Xi(c)(2790)(0)) / Li, Y [et al.] // Physical Review D. - 2019. - 100. - № 12. - 10.1103/PhysRevD.100.112010
URI
https://www.doi.org/10.1103/PhysRevD.100.112010
https://www.scopus.com/record/display.uri?eid=2-s2.0-85077923956&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000504982900002
https://openrepository.mephi.ru/handle/123456789/19202
https://www.scopus.com/record/display.uri?eid=2-s2.0-85077923956&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000504982900002
https://openrepository.mephi.ru/handle/123456789/19202