Sensitivity to new supersymmetric thresholds through flavor and CP violating physics

Maxim Pospelov, Adam Ritz, and Yudi Santoso
Phys. Rev. D 74, 075006 – Published 18 October 2006

Abstract

Treating the MSSM as an effective theory below a threshold scale Λ, we study the consequences of having dimension-five operators in the superpotential for flavor and CP-violating processes. Below the supersymmetric threshold such terms generate flavor changing and/or CP-odd effective operators of dimension six composed from the standard model fermions, that have the interesting property of decoupling linearly with the threshold scale, i.e. as 1/(Λmsoft), where msoft is the scale of soft supersymmetry breaking. The assumption of weak-scale supersymmetry, together with the stringent limits on electric dipole moments and lepton flavor-violating processes, then provides sensitivity to Λ as high as 107109GeV. We discuss the varying sensitivity to these scales within several MSSM benchmark scenarios and also outline the classes of UV physics which could generate these operators.

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  • Received 29 August 2006

DOI:https://doi.org/10.1103/PhysRevD.74.075006

©2006 American Physical Society

Authors & Affiliations

Maxim Pospelov1,2, Adam Ritz1, and Yudi Santoso1

  • 1Department of Physics and Astronomy, University of Victoria, Victoria, BC, V8P 1A1 Canada
  • 2Perimeter Institute for Theoretical Physics, Waterloo, ON, N2J 2W9, Canada

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Issue

Vol. 74, Iss. 7 — 1 October 2006

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