Sensitivity of High-Scale SUSY in Low Energy Hadronic FCNC

TL;DR

This paper investigates how high-scale supersymmetry (10-1000 TeV) influences flavor-changing neutral currents and electric dipole moments in meson systems, highlighting potential observable effects and constraints from EDM measurements.

Contribution

It provides a detailed analysis of SUSY effects on FCNCs and EDMs at high scales, incorporating recent Higgs data and squark spectrum calculations, which was not extensively explored before.

Findings

SUSY can contribute up to 40% to epsilon_K at 10-100 TeV.

Neutron EDM could be detectable at 10^{-28} to 10^{-26} ecm if SUSY effects are significant.

Mercury EDM imposes strong constraints on gluino-squark interactions.

Abstract

We discuss the sensitivity of the high-scale SUSY at $10$-$1000$ TeV in $B^0$, $B_s$, $K^0$ and $D$ meson systems together with the neutron EDM and the mercury EDM. In order to estimate the contribution of the squark flavor mixing to these FCNCs,we calculate the squark mass spectrum, which is consistent with the recent Higgs discovery. The SUSY contribution in $\epsilon_K$ could be large, around 40% in the region of the SUSY scale $10$-$100$ TeV. The neutron EDM and the mercury EDM are also sensitive to the SUSY contribution induced by the gluino-squark interaction. The predicted EDMs are roughly proportional to $|\epsilon_K^{\rm SUSY}|$. If the SUSY contribution is the level of O(10%) for epsilon_K, the neutron EDM is expected to be discovered in the region of $10^{-28}$-$10^{-26}$ecm. The mercury EDM also gives a strong constraint for the gluino-squark interaction. The SUSY contribution of $\Delta M_D$ is also discussed.