Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 88: Flavorphysik III

T 88.9: Vortrag

Donnerstag, 28. März 2019, 18:05–18:20, S15

Test of lepton flavour universality with b → s ℓℓ decays at the LHCb experiment — Johannes Albrecht und •Alex Seuthe — Technische Universität Dortmund

Current measurements of the LHCb experiment hint to deviations from Standard Model predictions in tests of lepton flavour universality. An example for this is the measurement of R_K^*0, the ratio of the branching fractions of the decays B⁰ → K^*0 µ⁺ µ⁻ and B⁰ → K^*0 e⁺ e⁻. This measurement was performed with the a dataset corresponding to an integrated luminosity of 3/fb. For conclusive results the measurements have to include the extended LHCb dataset. In this talk the updated measurement of R_K^*0, which is currently under preparation, is presented.