The quest for $$\mu \rightarrow e \gamma $$ μ→eγ and its experimental limiting factors at future high intensity muon beams

Abstract The search for the lepton flavor violating decay $$\mu ^+ \rightarrow e^+ \gamma $$ μ+→e+γ  will reach an unprecedented level of sensitivity within the next five years thanks to the MEG-II experiment. This experiment will take data at the Paul Scherrer Institut where continuous muon beams a...

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Bibliographic Details
Main Authors: G. Cavoto, A. Papa, F. Renga, E. Ripiccini, C. Voena
Format: Article
Language:English
Published: SpringerOpen 2018-01-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-017-5444-y
Description
Summary:Abstract The search for the lepton flavor violating decay $$\mu ^+ \rightarrow e^+ \gamma $$ μ+→e+γ  will reach an unprecedented level of sensitivity within the next five years thanks to the MEG-II experiment. This experiment will take data at the Paul Scherrer Institut where continuous muon beams are delivered at a rate of about $$10^8$$ 108 muons per second. On the same time scale, accelerator upgrades are expected in various facilities, making it feasible to have continuous beams with an intensity of $$10^9$$ 109 or even $$10^{10}$$ 1010 muons per second. We investigate the experimental limiting factors that will define the ultimate performances, and hence the sensitivity, in the search for $$\mu ^+ \rightarrow e^+ \gamma $$ μ+→e+γ with a continuous beam at these extremely high rates. We then consider some conceptual detector designs and evaluate the corresponding sensitivity as a function of the beam intensity.
ISSN:1434-6044
1434-6052