The first simultaneous test of muon-electron universality using B+→K+ℓ+ℓ- and B0→K∗0ℓ+ℓ- decays is performed, in two ranges of the dilepton invariant-mass squared, q2. The analysis uses beauty mesons produced in proton-proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 fb-1. Each of the four lepton universality measurements reported is either the first in the given q2 interval or supersedes previous LHCb measurements. The results are compatible with the predictions of the Standard Model.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2023). Test of Lepton Universality in b →sℓ+ℓ- Decays. PHYSICAL REVIEW LETTERS, 131(5) [10.1103/PhysRevLett.131.051803].

Test of Lepton Universality in b →sℓ+ℓ- Decays

Borsato M.;Calvi M.;Capelli S.;Carniti P.;Fazzini D.;Garcia Pardinas J.;Gotti C.;Kirsebom V. S.;Martinazzoli L.;Martinelli M.;Meloni S.;Minotti A.;Petruzzo M.;Pizzichemi M.;Salomoni M.;Shields E. B.;
2023

Abstract

The first simultaneous test of muon-electron universality using B+→K+ℓ+ℓ- and B0→K∗0ℓ+ℓ- decays is performed, in two ranges of the dilepton invariant-mass squared, q2. The analysis uses beauty mesons produced in proton-proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 fb-1. Each of the four lepton universality measurements reported is either the first in the given q2 interval or supersedes previous LHCb measurements. The results are compatible with the predictions of the Standard Model.
Articolo in rivista - Articolo scientifico
Elementary particles
English
2023
131
5
051803
none
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2023). Test of Lepton Universality in b →sℓ+ℓ- Decays. PHYSICAL REVIEW LETTERS, 131(5) [10.1103/PhysRevLett.131.051803].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/451462
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