21–24 Sept 2021
Europe/Zurich timezone

Lepton Flavor Violation and Dilepton Tails at the LHC

24 Sept 2021, 11:00
25m
Flavor Flavor

Speaker

Dr Olcyr Sumensari (University of Zurich)

Description

Charged Lepton Flavor Violation (LFV) is a very clean probe of New Physics since it is forbidden in the Standard Model (SM). The observation of neutrino oscillation implies nonzero LFV rates, which however are highly suppressed by the smallness of neutrino masses. This makes LFV an appealing target of experimental searches, as its observation would unambiguously point to New Physics.

In this talk, I will discuss the constraints on LFV effective operators that can be derived from LHC data. I will show that semileptonic operators can be constrained by existing searches of $pp\to \ell_i \ell_j$ (with $i\neq j$) at high-$p_T$. I will explore the complementary of these constraints with the ones obtained from low-energy observables, by showing, in particular, that LHC data provides the most stringent limits on quark-flavor conserving operators. The relevance of these results for leptoquark models aiming to explain the 𝐵-physics anomalies will also be briefly discussed.

Authors

Andrei Angelescu (University of Nebraska-Lincoln) Dr Olcyr Sumensari (University of Zurich) Darius Faroughy (University of Zurich)

Presentation materials