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- W2139538475 abstract "We investigate the possibility of satisfying the SU(5) boundary condition Y d = Y eT at the GUT scale within the renormalizable R-parity conserving Minimal Supersymmetric Standard Model (MSSM). Working in the super-CKM basis, we consider non-zero flavour off-diagonal entries in the soft SUSY-breaking mass matrices and the A-terms. At the same time, the diagonal A-terms are assumed to be suppressed by the respective Yukawa couplings. We show that a non-trivial flavour structure of the soft SUSY-breaking sector can contribute to achieving precise Yukawa coupling unification for all three families, and that the relevant flavour-violating parameters are $$ left({m}_{tilde{d}}^2right)23 $$ , $$ left({m}_{tilde{d}}^2right)12 $$ , $$ left({m}_{tilde{d}}^2right)13 $$ and A 12/21 . We indicate the parameter space regions where the Yukawa unification condition can be satisfied, and we demonstrate that it is consistent with a wide set of experimental constraints, including flavour and electroweak observables, Higgs physics and the LHC bounds. However, as a consequence of the down-electron Yukawa unification requirement, the MSSM vacuum in our scenario is metastable, though long-lived. We also point out that the lightest neutralino needs to be almost purely bino-like and relatively light, with the mass in the ballpark of 250 GeV. Since the proper value of the dark matter relic density is in this case obtained through co-annihilation with a sneutrino, at least one generation of sleptons must be light. Such a clear experimental prediction makes the flavour-violating SU(5) Yukawa unification scenario fully testable at the LHC $$ sqrt{s}=14 $$ TeV with the 3-lepton searches for electroweakino production." @default.
- W2139538475 created "2016-06-24" @default.
- W2139538475 creator A5051770982 @default.
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- W2139538475 date "2015-04-01" @default.
- W2139538475 modified "2023-10-16" @default.
- W2139538475 title "Exact SU(5) Yukawa matrix unification in the general flavour violating MSSM" @default.
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- W2139538475 doi "https://doi.org/10.1007/jhep04(2015)120" @default.
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