Measurement of CP-Averaged Observables in the B-0 -> K-star 0 mu(+)mu(-) Decay

An angular analysis of the B0→K*0(→K+π−)μ+μ− decay is presented using a dataset corresponding to an integrated luminosity of 4.7  fb−1 of pp collision data collected with the LHCb experiment. The full set of CP-averaged observables are determined in bins of the invariant mass squared of the dimuon s...

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Detalhes bibliográficos
Autores: Alfonso Albero, Alejandro, Calvo Gómez, Míriam, Camboni, Alessandro, Coquereau, Samuel, Garrido Beltrán, Lluís, Gascón Fora, David, Gironella Gironell, Pere, Graciani Díaz, Ricardo, Graugés Pous, Eugeni, Manera Escalero, R., Vázquez Gómez, Ricard, Vilasis-Cardona, Xavier, LHCb Collaboration
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/175177
Acesso em linha:https://hdl.handle.net/2445/175177
Access Level:acceso abierto
Palavra-chave:Gran Col·lisionador d'Hadrons
Leptons (Física nuclear)
Moment angular (Física nuclear)
Large Hadron Collider (France and Switzerland)
Leptons (Nuclear physics)
Angular momentum (Nuclear physics)
Descrição
Resumo:An angular analysis of the B0→K*0(→K+π−)μ+μ− decay is presented using a dataset corresponding to an integrated luminosity of 4.7  fb−1 of pp collision data collected with the LHCb experiment. The full set of CP-averaged observables are determined in bins of the invariant mass squared of the dimuon system. Contamination from decays with the K+π− system in an S-wave configuration is taken into account. The tension seen between the previous LHCb results and the standard model predictions persists with the new data. The precise value of the significance of this tension depends on the choice of theory nuisance parameters.

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