The design of the MEG II experiment
A.M. Baldini, E. Baracchini, C. Bemporad, F. Berg, M. Biasotti, G., Boca, P.W. Cattaneo, G. Cavoto, F. Cei, M. Chiappini, G. Chiarello, C. Chiri,, G. Cocciolo, A. Corvaglia, A. de Bari, M. De Gerone, A. D'Onofrio, M., Francesconi, Y. Fujii, L. Galli, F. Gatti, F. Grancagnolo
TL;DR
The MEG II experiment is an upgraded version of the original MEG experiment, designed to enhance sensitivity in detecting mu+->e+ gamma decay by a factor of ten through significant design improvements.
Contribution
This paper introduces the detailed design and expected performance of the MEG II upgrade, aiming to improve detection sensitivity for rare muon decay.
Findings
Designed to reach a branching ratio sensitivity of 6 x 10^-14
Includes substantial detector upgrades for enhanced performance
Aims to significantly improve experimental sensitivity compared to previous results
Abstract
The MEG experiment, designed to search for the mu+->e+ gamma decay at a 10^-13 sensitivity level, completed data taking in 2013. In order to increase the sensitivity reach of the experiment by an order of magnitude to the level of 6 x 10-14 for the branching ratio, a total upgrade, involving substantial changes to the experiment, has been undertaken, known as MEG II. We present both the motivation for the upgrade and a detailed overview of the design of the experiment and of the expected detector performance.
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