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Observation of B-s(0) -> K* (+/-) K -/+ and evidence for B-s(0) -> K*(-) pi(+) decays

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Observation of B-s(0) -> K* (+/-) K -/+ and evidence for B-s(0) -> K*(-) pi(+) decays

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dc.contributor.author	LHCb Collaboration
dc.contributor.author	Martínez Vidal, Fernando
dc.contributor.author	Oyanguren Campos, Arantza
dc.contributor.author	Ruiz Valls, Pablo
dc.contributor.author	Sánchez Mayordomo, Carlos
dc.date.accessioned	2016-04-20T10:09:32Z
dc.date.available	2016-04-20T10:09:32Z
dc.date.issued	2014
dc.identifier.citation	LHCb Collaboration Martínez Vidal, Fernando Oyanguren Campos, Arantza Ruiz Valls, Pablo Sánchez Mayordomo, Carlos 2014 Observation of B-s(0) -> K* (+/-) K -/+ and evidence for B-s(0) -> K*(-) pi(+) decays New Journal of Physics 16 123001-1 123001-18
dc.identifier.uri	http://hdl.handle.net/10550/52878
dc.description.abstract	Measurements of the branching fractions of B-s(0) -> KK-+/-(-/+) and B-s(0) -> K(+/-) pi(-/+) decays are performed using a data sample corresponding to 1.0 fb(-1) of protonproton collision data collected with the LHCb detector at a centre-of- mass energy of 7 TeV, where the K(+/-) mesons are reconstructed in the K-s(0) pi(+/-) final state. The first observation of the B-s(0) -> K(+/-) K--/+ decay and the first evidence for the B-s(0) -> K(-) pi(+) decay are reported with branching fractions B(B-s(0) -> KK-+/-(-/+)) = (12.7 +/- 1.9 +/- 1.9) x 10(-6) , B(B-s(0) -> K(-) pi(+)) = (3.3 +/- 1.1 +/- 0.5) x 10(-6) , where the first uncertainties are statistical and the second are systematic. In addition, an upper limit of B(B-0 -> KK-+/-(-/+)) < 0.4 (0.5) x 10(-6) is set at 90% (95%) confidence level.
dc.language.iso	eng
dc.relation.ispartof	New Journal of Physics, 2014, vol. 16, p. 123001-1-123001-18
dc.subject	Física nuclear
dc.title	Observation of B-s(0) -> K* (+/-) K -/+ and evidence for B-s(0) -> K*(-) pi(+) decays
dc.type	journal article	es_ES
dc.date.updated	2016-04-20T10:09:32Z
dc.identifier.doi	10.1088/1367-2630/16/12/123001
dc.identifier.idgrec	101798
dc.rights.accessRights	open access	es_ES