https://doi.org/10.1051/epjconf/201611801004
Status and perspectives of the MEG experiment
INFN and Universitty of Pisa, Department of Physics, Largo B.Pontecorvo 3, 56127 Pisa, Italy
a e-mail: fabrizio.cei@pi.infn.it
Published online: 26 April 2016
We present the status and the perspectives of the MEG experiment which has been searching for the Lepton Flavour Violating decay μ+ → e+γ for several years. In a dataset corresponding to 3.6 × 1014 positive muons stopped on target we didn’t find any evidence for this decay and established an upper bound on the μ+ → e+γ branching ratio of 5.7 × 10−13 at 90% C.L., with a sensitivity of 7.7 × 10−13, which improves our world best limit by a factor of 4 and the best previous limit by a factor of 20. Our final dataset is about twice as large than the analyzed sample and the expected final sensitivity of the experiment is ∼ 5 × 10−13. We also discuss the status of the upgrade of the experiment (MEGII) which aims to improve the sensitivity by a further order of magnitude.
© Owned by the authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
