3 papers
hep-ph2025
Precision Unitarity Calculations in Inflationary Models
Thomas Steingasser, Mark P. Hertzberg, David I. Kaiser
We revisit perturbative unitarity in scalar field inflation with a nonminimal coupling, with Higgs inflation serving as the most prominent example. Although such models are phenome…
hep-ph2025
Higgs Criticality and the Metastability Bound: a target for future colliders
Maximilian Detering, Victor Enguita, Belen Gavela +2
New physics at the TeV scale or lower may destabilise the electroweak vacuum. How low could the vacuum instability scale be? This fundamental question may be tied to a deeper under…
hep-ph2024
Spontaneous symmetry breaking, gauge hierarchy and electroweak vacuum metastability
Sean Benevedes, Thomas Steingasser, Sokratis Trifinopoulos
The so-called metastability bound asserts that an unnaturally small Higgs mass is a necessary condition for electroweak vacuum metastability, offering a new approach towards solvin…