Sensitivity study of $B^0\to K^{*0}\tau^+\tau^-$ at FCC-$ee$
Year: 2024
Type: conference-paper
Abstract: The aim of this work is to study the capabilities of experiments at the Future Circular Collider FCC-$ee$ to unravel the quark transitions $b\to s\tau^+\tau^-$, unobserved to date. At meson scale the decay $B^0_d\to K^*\tau^+\tau^-$ with the transition $\tau\to\pi\pi\pi\nu_{\tau}$ is studied with a method to reconstruct explicitly the two undetected neutrinos. The detector requirements to study this decay are evaluated, in particular the vertexing resolution performance are emulated and compared to IDEA, a detector concept used for FCC-$ee$ simulations. Analysis of simulated signal events together with simulated dominant backgrounds has been done in order to draw the precision of the $B^0_d\to K^*\tau^+\tau^-$ branching fraction measurement as function of the vertexing resolution performance and evaluate the feasibility of this measurement at FCC-$ee$.
DOI: 10.22323/1.443.0060
Author: Tristan Miralles
Institution: Laboratoire de Physique de Clermont Auvergne
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4404149648