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Sensitivity to new supersymmetric thresholds through flavor and CP violating physics

Sensitivity to new supersymmetric thresholds through flavor and CP violating physics,10.1103/PhysRevD.74.075006,Physical Review D,Maxim Pospelov,Adam

Sensitivity to new supersymmetric thresholds through flavor and CP violating physics   (Citations: 5)
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Treating the MSSM as an effective theory below a threshold scale Lambda, 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/(Lambdamsoft), 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 Lambda 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.
Journal: Physical Review D - PHYS REV D , vol. 74, no. 7, 2006
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