Experimental Particle and Astro-Particle Physics Seminar

Monday 7 Oct 2024, 14:00 → 16:00 Europe/Zurich

Stefanos Leontsinis (University of Zurich (CH))

Abstract: The $K^+ \rightarrow \pi^+ \nu \bar{\nu}$ decay is a golden mode for flavour physics. Its branching ratio is predicted with high precision by the Standard Model to be less than $\mathcal{O}(10^{-10})$. This decay mode is highly sensitive to indirect effects of new physics up to the highest mass scales. The NA62 experiment at the CERN SPS is designed to study the$K^+ \rightarrow \pi^+ \nu \bar{\nu}$ decay, and provided the world’s most precise investigation of this decay using 2016-18 data. Building on this success the first results from a significantly improved analysis of new data, taken in 2021-22 after beam-line and detector upgrades, are presented, as well as the combination with the 2016-18 results.

 

zoom room link

1 TBA

Speaker: Radoslav Marchevski (École Polytechnique Fédérale de Lausanne (EPFL))