Electroweak breaking with heavy squarks

by Adam Falkowski (Warsaw University)

Thursday 26 Aug 2004, 14:00 → 15:00 Europe/Zurich

TH Auditorium (CERN)

I discuss supersymmetric models in which the Higgs doublet is a pseudo-Goldstone boson of SU(3) global symmetry. In such models the Higgs potential is protected by both supersymmetry and the Little Higgs mechanism. When squark masses respect the SU(3) symmetry there is no quadratic sensitivity of the Higgs mass parameter to the soft breaking scalar masses at one-loop level. Therefore the squarks can be much heavier than in the MSSM. In fact, electroweak breaking works for scalar superpartner masses of order 10 TeV (but gauginos should be lighter). The physical Higgs boson mass is predicted in the range 115-135 GeV.