dc.contributor | Universitat Ramon Llull. La Salle | |
dc.contributor | CERN | |
dc.contributor.author | Calvo Gómez, Míriam | |
dc.contributor.author | Camboni, Alessandro | |
dc.contributor.author | Vilasís Cardona, Xavier | |
dc.contributor.author | LHCb Collaboration - CERN | |
dc.date.accessioned | 2020-11-23T16:43:05Z | |
dc.date.accessioned | 2023-10-02T06:25:25Z | |
dc.date.available | 2020-11-23T16:43:05Z | |
dc.date.available | 2023-10-02T06:25:25Z | |
dc.date.created | 2019-11 | |
dc.date.issued | 2020-03 | |
dc.identifier.uri | http://hdl.handle.net/20.500.14342/3071 | |
dc.description.abstract | The Cabibbo-suppressed semileptonic decay B+→pp¯¯¯μ+νμ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the pp¯¯¯ invariant mass using the decay mode B+→ J/ψK+ for normalisation. The total branching fraction is measured to be B(B+→pp¯¯¯μ+νμ)=(5.27+0.23−0.24±0.21±0.15)×10−6,
where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel. | eng |
dc.format.extent | 22 p. | cat |
dc.language.iso | eng | cat |
dc.publisher | Springer | cat |
dc.relation.ispartof | Journal of High Energy Physics, 2020, 146 | cat |
dc.rights | Attribution 4.0 International | |
dc.rights | © L'autor/a | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.source | RECERCAT (Dipòsit de la Recerca de Catalunya) | |
dc.subject.other | Gran col·lisionador d'hadrons (França i Suïssa) | cat |
dc.subject.other | Col·lisions (Física nuclear) | cat |
dc.subject.other | Partícules (Física nuclear) | cat |
dc.title | Observation of the semileptonic decay B+→pp¯¯¯μ+νμ | cat |
dc.type | info:eu-repo/semantics/article | cat |
dc.type | info:eu-repo/semantics/publishedVersion | cat |
dc.rights.accessLevel | info:eu-repo/semantics/openAccess | |
dc.embargo.terms | cap | cat |
dc.subject.udc | 539 | |
dc.identifier.doi | https://doi.org/10.1007/JHEP03(2020)146 | cat |