Search for μ->eγ in the MEG II experiment with the highest sensitivity to date
Abstract
We report a search for the charged lepton flavor-violating decay $\mu\to e\gamma$ using the MEG~II dataset collected in 2021 -- 2022. The sensitivity of this search was $2.2\times10^{-13}$, improving upon the previous result by a factor of 2.4. No excess over the expected background was observed, and we set a new 90% C.L. upper limit on the branching ratio of $1.5\times 10^{-13}$. The sensitivity remains statistically limited, and with additional data and improved analysis methods, the experiment aims to reach its ultimate goal of $6\times 10^{-14}$.
Fields of Study & Subjects
Particle physics theoretical and experimental studies
Particle Detector Development and Performance
Neutrino Physics Research
Publication details
- Journal / source
- European Physical Society Conference on High Energy Physics (EPS-HEP)
- Pages
- 304–304
- Publication date
- 6 February 2026
- Language
- EN