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dc.contributorUniversitat Ramon Llull. La Salle
dc.contributorCERN
dc.contributor.authorLHCb Collaboration - CERN
dc.contributor.authorCalvo Gómez, Míriam
dc.contributor.authorCamboni, Alessandro
dc.contributor.authorGolobardes, Elisabet
dc.contributor.authorVilasís Cardona, Xavier
dc.date.accessioned2021-07-20T17:59:02Z
dc.date.accessioned2023-10-02T06:25:36Z
dc.date.available2021-07-20T17:59:02Z
dc.date.available2023-10-02T06:25:36Z
dc.date.issued2021-05
dc.identifier.urihttp://hdl.handle.net/20.500.14342/3085
dc.description.abstractThe Cabibbo-suppressed decay Λ0b → χc1pπ− is observed for the first time using data from proton-proton collisions corresponding to an integrated luminosity of 6 fb−1, collected with the LHCb detector at a centre-of-mass energy of 13 TeV. Evidence for the Λ0b → χc2pπ− decay is also found. Using the Λ0b → χc1pK− decay as normalisation channel, the ratios of branching fractions are measured to be: B(Λ0b→χc1pπ−)B(Λ0b→χc1pK−)= 6.59±1.01±0.22)×10−2 B(Λ0b→χc2pπ−)B(Λ0b→χc1pπ−)= 0.95±0.30±0.04±0.04 B(Λ0b→χc2pK−)B(Λ0b→χc1pK−)= 1.06±0.05±0.04±0.04, where the first uncertainty is statistical, the second is systematic and the third is due to the uncertainties in the branching fractions of χc1,2 → J/ψγ decays.
dc.format.extent21 p.cat
dc.language.isoengcat
dc.publisherSpringercat
dc.relation.ispartofJournal of High Energy Physics, 2021, Vol.5, No. 95cat
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.otherInteraccions d'hadronscat
dc.subject.otherPartícules (Física nuclear)cat
dc.subject.otherProtonscat
dc.titleObservation of the decay Λ0b → χc1pπ−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/JHEP05(2021)095cat


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Attribution 4.0 International
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/
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