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arXiv · 1106.4756

Muon decay in orbit: spectrum of high-energy electrons

Andrzej Czarnecki·Xavier Garcia i Tormo·William J. Marciano
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Abstract

Experimental searches for lepton-flavor-violating coherent muon-to-electron conversion in the field of a nucleus, have been proposed to reach the unprecedented sensitivity of 10^(-16) - 10^(-18) per stopped muon. At that level, they probe new interactions at effective-mass scales well beyond 1000 TeV. However, they must contend with background from ordinary bound muon decay. To better understand the background-spectrum shape and rate, we have carried out a detailed analysis of Coulombic-bound-state muon decay, including nuclear recoil. Implications for future experiments are briefly discussed.

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Andrzej Czarnecki, Xavier Garcia i Tormo, William J. Marciano. 2011-07-15. Muon decay in orbit: spectrum of high-energy electrons. https://doi.org/10.1103/physrevd.84.013006

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