Searching for charged lepton flavor violation: New results from the MEG experiment

18th International Symposium on Particles Strings and Cosmology

Lim, Gordon^1

Department of Physics and Astronomy, University of California, Irvine, CA 92697, United States^1

关键词: Branching ratio;    Charged leptons;    Confidence levels;    Current status;    Data sample;    New results;    The standard model;    Upper limits;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/485/1/012037/pdf
DOI  :  10.1088/1742-6596/485/1/012037

来源: IOP

【 摘 要 】

Discovery of charged lepton flavor violation would be unambiguous evidence of new physics beyond the Standard Model. The MEG experiment focuses on μ+R e+γ decay and has recently published a search result based on data collected in 2009 and 2010. No evidence of this decay mode is found in this data sample, resulting in an upper limit on the branching ratio of 2.4·10-12at 90% confidence level, the best limit ever achieved for this process. This result as well as the current status and prospects of the MEG experiment are reported here.