Title:

Technically natural Higgs models

Location:

N/A


Speaker(s):

Martin Rosenlyst

Organiser:

N/A


Date/Time:

01-12-2022 at 1:00 pm - 2:00 pm

Link:

Description:

The Standard Model (SM) fermion mass generation in the (Partially) Composite Higgs framework may suffer from problems due to, for example, reintroduction of new SM naturalness problems, generation of dangerous flavor changing neutral currents, instability of the Higgs vacuum, or challenging non-minimal model building. All these problems can be alleviated if these models have a large compositeness scale, but this requires an unnatural small vacuum misalignment. Therefore, I propose UV complete (Partially) Composite Higgs models with compositeness scale up to the Planck scale assisted by a novel mechanism. This mechanism is based on softly breaking a global Z2 symmetry by technically natural small vacuum misalignment, dynamically triggering the electroweak symmetry breaking and SM fermion mass generation. In this presentation, I also consider a concrete scale-invariant model example that fulfills this, while perhaps predicting measurable gravitational waves and explaining the neutrino masses and inflation.