Sensitivity to new supersymmetric thresholds through flavor and CP violating physics

Maxim Pospelov, Adam Ritz, Yudi Santoso

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

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 107-109GeV. 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.

Original languageEnglish (US)
Article number075006
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume74
Issue number7
DOIs
StatePublished - 2006
Externally publishedYes

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