Dortmund 2021 – wissenschaftliches Programm
T 81.4: Vortrag
Donnerstag, 18. März 2021, 16:45–17:00, Tf
Test of lepton flavour universality with b → s ℓℓ decays at the LHCb experiment — Johannes Albrecht, Vitalii Lisovskyi, and •Alex Seuthe — Technische Universität Dortmund
Current measurements of the LHCb experiment hint to deviations from Standard Model predictions in tests of lepton flavour universality. Examples for this are the measurements of RK*0 and RK, the ratios of the branching fractions of the decays B0 → K*0 µ+ µ− and B0 → K*0 e+ e−, and B+ → K+ µ+ µ− and B+ → K+ e+ e−, respectively. For conclusive results the measurements have to include the full LHCb dataset. In this talk the updated simultaneous measurement of RK*0 and RK, which is currently under preparation, is presented.