Status of BSM searches with the MEG II experiment

9 Jun 2026, 14:54
24m
Scuola Normale Superiore, Aula Dini, Palazzo del Castelletto (Pisa)

Scuola Normale Superiore, Aula Dini, Palazzo del Castelletto

Pisa

Via del Castelletto, 11, 56126 Pisa PI

Speaker

Luca Galli (INFN Pisa)

Description

The MEG II experiment at the Paul Scherrer Institute searches for the charged lepton flavor violating decay μ⁺ → e⁺γ with a target sensitivity of 6 × $10^{-14}$, improving previous limits by an order of magnitude. This process is highly suppressed in the Standard Model, making it a sensitive probe of new physics.

Beyond its primary goal, MEG II can explore additional scenarios involving light, weakly interacting particles. In particular, axion-like particles (ALPs) may be investigated through anomalous photon signatures in muon decays. The dataset also offers potential sensitivity to exotic signals such as the proposed X17 boson, motivated by anomalies in nuclear transitions.

In this talk, I will report on the current status of data taking and analysis, and outline perspectives for future developments.

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Author

Luca Galli (INFN Pisa)

Presentation materials