10 papers · 1 filter
Darkly Charged ALPs
Nicolás M. Arenaza, Enrique Fernández-Martínez, Belén Gavela +4
The established ALP effective Lagrangian describes the interaction of scalars with approximate shift-symmetry which carry no Standard Model (SM) charges with SM fields. It im…
Tunneling and tidal stripping in multifield ultralight dark matter halos
Benjamin V. Lehmann, Jackie Lodman, Thomas Steingasser
Tidal stripping is a key feature of the evolution of dark matter (DM) halos, and has major implications for the population of low-mass galaxies. In the case of ultralight DM, tidal…
A new connection between WIMP dark matter and the hierarchy problem
Maximilian Detering, Thomas Steingasser, Tevong You
This work proposes a direct link between the hierarchy problem and Weakly Interacting Massive Particles (WIMPs): we suggest that the small mass of the Higgs boson arises from being…
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…
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…
Higgs near-criticality at future colliders
Victor Enguita, Belen Gavela, Thomas Steingasser
The so-called metastability bound on the Higgs mass suggests that the smallness of the Higgs mass may be a byproduct of the metastability of the electroweak vacuum. A significantly…