Muon-Decay Parameters from COHERENT
arXiv:2502.18175 · doi:10.1103/mlhl-v822
Abstract
We demonstrate that measurements of Coherent Elastic Neutrino-Nucleus Scattering (CENS) at spallation sources are valuable probes of muon-decay physics. Using COHERENT data we derive the first direct constraint on the Michel parameters governing the energy distribution. We also discuss future sensitivities, the implications for the Lorentz structure of the interactions mediating muon decay and the application to other neutrino-production mechanisms like pion decay.
6 pages, 3 figures. Matches the published version; new section added on pion decay
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