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| Paper IPM / P / 8420 |
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| Abstract: | |
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Although the Lepton Flavor Violating (LFV) decay μ+→ e+ γ is forbidden in the Standard Model (SM), it can take place
within various theories beyond the SM. If the branching ratio of
this decay saturates the present bound on it [i.e.,
Br(μ+ → e+γ) ∼ 10−11] the forthcoming
experiments can measure the branching ratio with high precision
and consequently yield information on the sources of LFV. In this
letter, we show that for polarized μ+, by studying the
angular distribution of the transversely polarized positron and
linearly polarized photon we can derive information on the
CP-violating sources beyond those in the SM. We also study the
decay μ+→ e+1 e− e+2 where e+1 is defined to be
the more energetic positron. We show that for transversely
polarized e1+, we can also derive information on the phases of
the underlying theory by studying the angular distribution of the
final particles.
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