# name
Improved Limits on Lepton-Flavor-Violating Decays of Light Pseudoscalars via Spin-Dependent μ→ e Conversion in Nuclei

# metadata.dc.description.abstract[].value
Lepton-flavor-violating decays of light pseudoscalars,   =  0,  ,  ′→  ⁢  , are stringently suppressed in the standard model up to tiny contributions from neutrino oscillations, so that their observation would be a clear indication for physics beyond the standard model. However, in effective field theory such decays proceed via axial-vector, pseudoscalar, or gluonic operators, which are, at the same time, probed in spin-dependent   →   conversion in nuclei. We derive master formulas that connect both processes in a model-independent way in terms of Wilson coefficients and study the implications of current   →   limits in titanium for the   →  ⁢   decays. We find that these indirect limits surpass direct ones by many orders of magnitude.

# metadata.dc.source[].value
Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.title[].value
Improved Limits on Lepton-Flavor-Violating Decays of Light Pseudoscalars via Spin-Dependent μ→ e Conversion in Nuclei