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The next generation of µ → eγ and µ → 3e CLFV search experiments

Cheng, C.-h. and Echenard, B. and Hitlin, D. G. (2013) The next generation of µ → eγ and µ → 3e CLFV search experiments. , Pasadena, CA. (Submitted) http://resolver.caltech.edu/CaltechAUTHORS:20131015-110000353

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Abstract

We explore the possibilities for extending the sensitivity of current searches for the charged lepton flavor violating decays µ → eγ and µ → eee. A future facility such as Project X at Fermilab could provide a much more intense stopping µ^+ beam, facilitating more sensitive searches, but improved detectors will be required as well. Current searches are limited by accidental and physics backgrounds, as well as by the total number of stopped muons. One of the limiting factors in current detectors for µ → eγ searches is the photon energy resolution of the calorimeter. We present a new fast Monte Carlo simulation of a conceptual design of a new experimental concept that detects converted e^+e^- pairs from signal photons, taking advantage of the improved energy resolution of a pair spectrometer based on a silicon charged particle tracker. We also study a related detector design for a next generation µ → eee search experiment.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/1309.7679arXivDiscussion Paper
Additional Information:We acknowledge helpful discussions with Fritz Dejongh and Franco Grancagnolo. This work was supported in part by the US Department of Energy under grant DE-FG02-92ER40701.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-92ER40701
Record Number:CaltechAUTHORS:20131015-110000353
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20131015-110000353
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41918
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:15 Oct 2013 20:37
Last Modified:15 Oct 2013 20:37

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