Speaker
Description
The custodial Two-Higgs-Doublet-Model with SU(2) gauge fields is studied on the
lattice. This model has the same global symmetry structure as the Standard
Model but the additional Higgs field enlarges the scalar spectrum and opens the
possibility for the occurrence of non-SM spontaneous symmetry breaking. Both
the spectrum and the running of the gauge coupling of the custodial 2HDM are
studied on a line of constant Standard Model physics with cutoff energy ranging
from 300 to 600 GeV. The bounds of the realizable masses for the additional BSM
scalar states are found to be well bellow the $W$ boson mass. In fact, for the
choice of quartic couplings the estimated lower mass is found to be about $\sim
0.2 m_W$ and independent of the cutoff.
