Kaon Decays beyond the Standard Model

2023/05/10 by Stefan Schacht, Schacht, Stefan
Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2305.06267

openalex publication_date 2023/05/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We review a new method in order to determine the parameter η of the Cabibbo-Kobayashi-Maskawa matrix from K→ μ⁺μ^- decays, using interference effects in the time-dependent decay rate. Furthermore, we discuss a new precision relation for the phase-shift of the time-dependent oscillation. The new methodology enables the discovery potential of future time-dependent measurements of K→ μ⁺μ^- decays for physics beyond the Standard Model.

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