77 citations · 476 across the 16 of their papers we have counts for
11 papers · 1 filter
Gauge-invariant description of the Higgs resonance and its phenomenological implications
Axel Maas, René Sondenheimer
We investigate the phenomenological consequences of a strict gauge-invariant formulation of the Higgs particle. This requires a description of the observable scalar particle in ter…
Higgs stability-bound and fermionic dark matter
Aaron Held, René Sondenheimer
Higgs-portal interactions of fermionic dark matter -- in contrast to fermions coupled via Yukawa interactions -- can have a stabilizing effect on the standard-model Higgs potential…
Nonpolynomial Higgs interactions and vacuum stability
René Sondenheimer
The possible violation of the conventional lower Higgs mass stability bound by the discovered Higgs boson has far reaching consequences within particle physics and cosmology. We di…
On the observable spectrum of theories with a Brout-Englert-Higgs effect
Axel Maas, René Sondenheimer, Pascal Törek
The physical, observable spectrum in gauge theories is made up from gauge-invariant states. The Fröhlich-Morchio-Strocchi mechanism allows in the standard model to map these states…
Renormalization Group Flow of the Higgs Potential
Holger Gies, René Sondenheimer
We summarize results for local and global properties of the effective potential for the Higgs boson obtained from the functional renormalization group, which allows to describe the…
Impact of generalized Yukawa interactions on the lower Higgs mass bound
Holger Gies, René Sondenheimer, Matthias Warschinke
We investigate the impact of operators of higher canonical dimension on the lower Higgs mass consistency bound by means of generalized Higgs-Yukawa interactions. Analogously to hig…
Pair production processes and flavor in gauge-invariant perturbation theory
Larissa Egger, Axel Maas, René Sondenheimer
Gauge-invariant perturbation theory is an extension of ordinary perturbation theory which describes strictly gauge-invariant states in theories with a Brout-Englert-Higgs effect. S…
Global flow of the Higgs potential in a Yukawa model
Julia Borchardt, Holger Gies, René Sondenheimer
We study the renormalization flow of the Higgs potential as a function of both field amplitude and energy scale. This overcomes limitations of conventional techniques that rely, e.…
The Higgs Mass and the Scale of New Physics
Astrid Eichhorn, Holger Gies, Joerg Jaeckel +3
In view of the measured Higgs mass of 125 GeV, the perturbative renormalization group evolution of the Standard Model suggests that our Higgs vacuum might not be stable. We connect…
Higgs Mass Bounds from Renormalization Flow for a Higgs-top-bottom model
Holger Gies, René Sondenheimer
We study a chiral Yukawa model mimicking the Higgs-top-bottom sector of the standard model. We re-analyze the conventional arguments that relate a lower bound for the Higgs mass wi…
Higgs Mass Bounds from Renormalization Flow for a simple Yukawa model
Holger Gies, Clemens Gneiting, René Sondenheimer
We study the functional renormalization group flow of a Higgs-Yukawa toy model mimicking the top-Higgs sector of the standard model. This approach allows for treating arbitrary bar…