Transverse positron polarization in the $μ^+ \to e^+ \bar{ν_μ} ν_e$ decay in SM

Details Transverse positron polarization in the $μ^+ \to e^+ \bar{ν_μ} ν_e$ decay in SM Transverse positron polarization in the $μ^+ \to e^+ \bar{ν_μ} ν_e$ decay in SM

2005-06-11

arxiv.org/abs/hep-ph/0506111v2

Phys.Lett. B625 (2005) 41-46

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 4 figures, minor typos fixed

Scientific paper

10.1016/j.physletb.2005.08.055

In this paper transverse positron polarization in the $\mu^+ \to e^+ \bar {\nu_{\mu}} \nu_e$ 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 $\mu^+ \to e^+ \bar {\nu_{\mu}} \nu_e$ decay will not be the obstacle to a new physics searches.

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