Measurement of the ratio of branching fractions B(B+ c → B0 sπ +)/B(B+ c → J/ψπ+) 

The ratio of branching fractions of B+ c → B0 sπ + and B+ c → J/ψπ+ decays is measured with proton-proton collision data of a centre-of-mass energy of 13 TeV. The data were collected with the LHCb experiment during 2016–2018, corresponding to an integrated luminosity of 5.4 fb−1 . The B0 s mesons ar...

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Detalles Bibliográficos
Autores: Aaij, R., Alfonso Albero, Alejandro, Garcia Moreno, Paula, Garrido Beltrán, Lluís, Gironella Gironell, Pere, Gomez Fernandez, S., Graugés Pous, Eugeni, Lobo Salvia, Aniol, López Huertas, Albert, Manera Escalero, Rafel, Marin Benito, Carla, Mauricio, J., Vazquez Gomez, R., LHCb collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/220613
Acceso en línea:https://hdl.handle.net/2445/220613
Access Level:acceso abierto
Palabra clave:Hadrons
Física de partícules
Particle physics
Descripción
Sumario:The ratio of branching fractions of B+ c → B0 sπ + and B+ c → J/ψπ+ decays is measured with proton-proton collision data of a centre-of-mass energy of 13 TeV. The data were collected with the LHCb experiment during 2016–2018, corresponding to an integrated luminosity of 5.4 fb−1 . The B0 s mesons are reconstructed via the decays B0 s → J/ψφ and B0 s → D− s π +. The ratio of branching fractions is measured to be B(B+ c → B0 sπ +)/B(B+ c → J/ψπ+) = 91±10±8±3 where the first uncertainty is statistical, the second is systematic and the third is due to the knowledge of the branching fractions of the intermediate state decays. 

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