New bounds on trilinear R-parity violation from lepton flavor violating observables

Apr, 2012
21 pages
Published in:
  • Phys.Rev.D 86 (2012) 015003
e-Print:
Report number:
  • BONN-TH-2012-07,
  • LPT-12-37

Citations per year

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Abstract: (arXiv)
Many extensions of the leptonic sector of the Minimal Supersymmetric Standard Model (MSSM) are known, most of them leading to observable flavor violating effects. It has been recently shown that the 1-loop contributions to lepton flavor violating three-body decays li3ljl_i \to 3 l_j involving the Z0Z^0 boson may be dominant, that is, much more important than the usual photonic penguins. Other processes like μ\mu-ee conversion in nuclei and flavor violating τ\tau decays into mesons are also enhanced by the same effect. This is for instance also the case in the MSSM with trilinear R-parity violation. The aim of this work is to derive new bounds on the relevant combinations of R-parity violating couplings and to compare them with previous results in the literature. For heavy supersymmetric spectra the limits are improved by several orders of magnitude. For completeness, also constraints coming from flavor violating Z0Z^0-decays and tree-level decay channels lliljlkl \to l_i l_j l_k are presented for a set of benchmark points.
Note:
  • 21 pages/ 5 figures/ v2: corrected bug, conclusion unchanged
  • 12.60.Jv
  • R parity: violation
  • lepton: flavor: violation
  • minimal supersymmetric standard model
  • supersymmetry
  • CERN LHC Coll
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