Abstract
In this Letter transverse positron polarization in the μ + → e + ν ¯ μ ν e decay in the framework of SM is considered. It is shown that the final state interaction effect leads to nonzero transverse polarization. Numerical value of the considered effect proved to be negligible. Thus SM contribution to the transverse positron polarization in the μ + → e + ν ¯ μ ν e decay will not be the obstacle to a new physics searches.
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