Tests of lepton universality in B0?KS0„“+“- and B+?K*+“+“- decays where“ is either an electron or a muon are presented. The differential branching fractions of B0?KS0e+e- and B+?K*+e+e- decays are measured in intervals of the dilepton invariant mass squared. The measurements are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb-1. The results are consistent with the standard model and previous tests of lepton universality in related decay modes. The first observation of B0?KS0e+e- and B+?K*+e+e- decays is reported.

Aaij, R., Abdelmotteleb, A., Beteta, A., Abudinen, F., Ackernley, T., Adeva, B., et al. (2022). Tests of Lepton Universality Using B0 ? KS0 â„“+â„“- and B+ ?k*+â„“+â„“- Decays. PHYSICAL REVIEW LETTERS, 128(19) [10.1103/PhysRevLett.128.191802].

Tests of Lepton Universality Using B0 ? KS0 â„“+â„“- and B+ ?k*+â„“+â„“- Decays

Calvi M.;Capelli S.;Carniti P.;Fazzini D.;Gotti C.;Martinazzoli L.;Martinelli M.;Meloni S.;Minotti A.;Pizzichemi M.;Shields E. B.;
2022

Abstract

Tests of lepton universality in B0?KS0„“+“- and B+?K*+“+“- decays where“ is either an electron or a muon are presented. The differential branching fractions of B0?KS0e+e- and B+?K*+e+e- decays are measured in intervals of the dilepton invariant mass squared. The measurements are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb-1. The results are consistent with the standard model and previous tests of lepton universality in related decay modes. The first observation of B0?KS0e+e- and B+?K*+e+e- decays is reported.
Articolo in rivista - Articolo scientifico
Particle Physics, Flavor Physics, Lepton Universality, B Meson Decays
English
2022
R. Aaij et al. (LHCb Collaboration)
Aaij, R., Abdelmotteleb, A., Beteta, A., Abudinen, F., Ackernley, T., Adeva, B., et al. (2022). Tests of Lepton Universality Using B0 ? KS0 â„“+â„“- and B+ ?k*+â„“+â„“- Decays. PHYSICAL REVIEW LETTERS, 128(19) [10.1103/PhysRevLett.128.191802].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/396970
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