Mostra el registre parcial de l'element

dc.contributorUniversitat Ramon Llull. La Salle
dc.contributorCERN
dc.contributor.authorBadalov, Alexey
dc.contributor.authorCalvo Gómez, Míriam
dc.contributor.authorVilasís Cardona, Xavier
dc.contributor.authorLHCb Collaboration - CERN
dc.date.accessioned2020-11-19T13:32:10Z
dc.date.accessioned2023-10-02T06:27:21Z
dc.date.available2020-11-19T13:32:10Z
dc.date.available2023-10-02T06:27:21Z
dc.date.created2015
dc.date.issued2015-06-18
dc.identifier.urihttp://hdl.handle.net/20.500.14342/3172
dc.description.abstractThe first observation of the B 0 s  → D ∗ s ∓ K ± decay is reported using 3.0 fb−1 of proton-proton collision data collected by the LHCb experiment. The D ∗ s ∓ mesons are reconstructed through the decay chain D ∗ s ∓ → γD ∓ s (K ∓ K ± π ∓). The branching fraction relative to that for B 0 s  → D ∗ s − π + decays is measured to be B(B0s→D∗s∓K±)/B(B0s→D∗s−π+)=0.068±0.005+0.003−0.002, where the first uncertainty is statistical and the second is systematic. Using a recent measurement of B(B0s→D∗s−π+) , the absolute branching fraction of B 0 s  → D ∗ s ∓ K ± is measured as B(B0s→D∗s∓K±)=(16.3±1.2(stat)+0.7−0.5(syst)±4.8(norm))×10−5, where the third uncertainty is due to the uncertainty on the branching fraction of the normalisation channel.eng
dc.format.extent16 p.cat
dc.language.isoengcat
dc.publisherSpringercat
dc.relation.ispartofJournal of High Energy Physics, 2015, Vol. 2015, No.6 (Juny)cat
dc.rightsAttribution 4.0 International
dc.rights© CERN
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceRECERCAT (Dipòsit de la Recerca de Catalunya)
dc.subject.otherGran col·lisionador d'hadrons (França i Suïssa)cat
dc.subject.otherPartícules (Física nuclear)cat
dc.subject.otherCol·lisions (Física nuclear)cat
dc.subject.otherProtonscat
dc.titleFirst observation and measurement of the branching fraction for the decay B 0 s  → D ∗ s ∓ K ±cat
dc.typeinfo:eu-repo/semantics/articlecat
dc.typeinfo:eu-repo/semantics/publishedVersioncat
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapcat
dc.subject.udc539
dc.identifier.doihttps://doi.org/10.1007/JHEP06(2015)130cat


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Mostra el registre parcial de l'element

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