μto e in R-symmetric Supersymmetry

Details μto e in R-symmetric Supersymmetry μto e in R-symmetric Supersymmetry

2010-04-05

arxiv.org/abs/1004.0556v2

Phys.Rev.D82:035010,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

31 pages, 16 figures; Typos fixed, minor corrections to fig. 13, version published in PRD

Scientific paper

10.1103/PhysRevD.82.035010

We demonstrate that mu/e slepton mixing is significantly more restricted than previously thought within the already remarkably flavor-safe R-symmetric supersymmetric standard model. We calculate bounds from mu to e gamma, mu to 3e and, most importantly, mu to e conversion. The process mu to e conversion is significantly more restrictive in R-symmetric models since this process can occur through operators that do not require a chirality-flip. We delineate the allowed parameter space, demonstrating that maximal mixing is rarely possible with weak scale superpartners, while O(0.1) mixing is permitted within most of the space. The best approach to find or rule out mu/e mixing in R-symmetric supersymmetric models is a multi-pronged attack looking at both mu to e conversion as well as mu to e gamma. The redundancy eliminates much of the parameter space where one process, but not both processes, contain amplitudes that accidentally destructively interfere. We briefly discuss implications for searches of slepton flavor violation at the LHC.

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