Lepton flavour and lepton number violation searches at the LHCb experiment

TL;DR

This paper reviews recent searches for lepton-flavour and lepton number violation in B decays at the LHCb experiment, motivated by hints of lepton-universality violation, highlighting the experiment's capabilities and recent results.

Contribution

It presents recent experimental results from LHCb on lepton-flavour violating B decays, demonstrating the experiment's sensitivity and ongoing search efforts.

Findings

No significant lepton-flavour violating decays observed

LHCb's detection capabilities enable stringent limits on such decays

Results constrain new physics models predicting lepton-flavour violation

Abstract

Recent hints for lepton-universality violation in $b\to c\ell\nu$ and $b\to s\ell\ell$ transitions could imply the existence of lepton-flavour violating $b$ decays. The LHCb experiment is well suited for the search for these decays due to its large acceptance and trigger efficiency, as well as its excellent invariant mass resolution and particle identification capabilities. Recent results on searches for lepton-flavour violating decays from the LHCb experiment are presented.