6–10 Jan 2025
Santa Maria University
Chile/Continental timezone

Lepton Flavour Violating Higgs decays at the Compact Linear Collider (CLIC) and Future Colliders

9 Jan 2025, 15:10
20m
Building A (Santa Maria University)

Building A

Santa Maria University

Avda. España 1680, Valparaíso, Chile

Speaker

Francisca Garay Walls (Pontifical Catholic University of Chile (CL))

Description

This talk provides an update on the current status of future collider projects, like the Compact Linear Collider (CLIC), the Future Circular Collider (FCC). It briefly outlines their progress and ongoing developments, while also addressing the European Strategy for Particle Physics recommendations.
I this context, Lepton flavour violating Higgs decays could appear in models beyond the Standard model of particle physics. In this talk I will present a sensitivity study of the Compact Linear Collider (CLIC) for this processes were the final states can be electron-muon pairs, tau-muon pairs or tau-electron pairs. Limits at $95\%$ CL on the branching ratios of these processes were calculated at $2.5\,ab^{-1}$ of data at $\sqrt{s}=1.4$ TeV and $\sqrt{s}=3$ TeV. We obtained $BR(H\rightarrow e\mu)<7.2\times10^{-3}\%$ , $BR(H\rightarrow \tau\mu)<0.024\%$ and $BR(H\rightarrow e\tau)<0.036\%$ for $\sqrt{s}=1.4$ TeV, and, $BR(H\rightarrow e\mu)<0.8\times10^{-3}\%$ , $BR(H\rightarrow \tau\mu)<0.007\%$ and $BR(H\rightarrow e\tau)<0.019\%$ for $\sqrt{s}=3$ TeV.

Authors

Francisca Garay Walls (Pontifical Catholic University of Chile (CL)) Gabriel Andres Vega Hernandez Philipp Roloff (CERN)

Presentation materials