Search for lepton flavour violation in B0 → ρ0τ±ℓ∓ decays, automatisation of the fake tracks rate measurement and study of the track time at Belle and Belle II experiments

jeudi 24 sept. 2026, 09:30 → 12:30 Europe/Paris

Amphithéâtre (CPPM)

Composition du jury :

Francesco Polci
Marcella Bona
Elisa Manoni
Cristinel Diaconu

 

Résumé :

 

 

Abstract :

This analysis aims at searching for Lepton Flavour Violation in the decays B0 → ρτ ±ℓ∓ (with ℓ = e, µ). using all the available data from the Belle and Belle II (Run1) experiments corresponding to integrated luminosities of 711 fb−1 and 365 fb−1 respectively. A hadronic tagging method is used to extract the signal from a fit of the τ recoil mass reconstructed using information from the tagged B meson and the ρℓ system. If no signal is observed we set an upper limit at 90 % confidence level on the branching fraction of the four modes.

Lien Zoom :
https://univ-amu-fr.zoom.us/j/93824507335?pwd=ZiNJQDwQ2GmLFviwWUl1laKOGZ3dXC.1

ID de réunion: 938 2450 7335
Code secret: 876284