Extracting the CP-violating phases of trilinear R-parity violating couplings from $μ\to eee$

Details Extracting the CP-violating phases of trilinear R-parity violating couplings from $μ\to eee$ Extracting the CP-violating phases of trilinear R-parity violating couplings from $μ\to eee$

2010-01-19

arxiv.org/abs/1001.3207v2

Phys.Lett.B690:48-56,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 2 figures; v2: A discussion on the feasibility of measuring the transverse polarization added

Scientific paper

10.1016/j.physletb.2010.05.005

It has recently been shown that by measuring the transverse polarizations of the final particles in $\mu^- \to e^- e^+ e^-$, it is possible to extract information on the phases of the effective couplings leading to this decay. We examine this possibility within the context of R-parity violating Minimal Supersymmetric Standard Model (MSSM) in which the $\mu^- \to e^- e^+e^-$ process can take place at a tree level. We demonstrate how a combined analysis of the angular distribution of the emitted positrons and their transverse polarization can determine the CP-violating phases of the trilinear R-parity violating Yukawa couplings.

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