Split Generation in the SUSY Mass Spectrum and B_s-{\bar B}_s Mixing

Abstract

We show that the like-sign di-muon anomaly reported recently by the D0 Collaboration can be explained in the supersymmetric standard model (SM) if the squarks and the sleptons in the first two generations have relatively small, but degenerate mass spectrum, and those in the third generation are larger as O(1-10)TeV. This split generation model provides large contributions to the B_s-{\bar B}_s mixing, although most of the FCNC's are suppressed due to the large masses of the third generation squarks or the GIM mechanism partially acting on the first and second generations.

15 pages, 1 figure

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• Muon $g-2$ in Split-Family SUSY in light of LHC Run II
• Like-sign dimuon asymmetry of B0 meson and LFV in SU(5) SUSY GUT with S4 flavor symmetry
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• Sensitivity of the squark flavor mixing to the CP violation of K, B0 and Bs mesons
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• Sensitivity of High-Scale SUSY in Low Energy Hadronic FCNC
• Prospects for Slepton Searches in Future Experiments