299 citations · 3.7k across the 92 of their papers we have counts for
5 papers · 1 filter
Effective description of dark matter as a viscous fluid
S. Floerchinger, M. Garny, N. Tetradis +1
Treating dark matter at large scales as an effectively viscous fluid provides an improved framework for the calculation of the density and velocity power spectra compared to the st…
Gauge-Independent Scales Related to the Standard Model Vacuum Instability
Jose R. Espinosa, Mathias Garny, Thomas Konstandin +1
The measured (central) values of the Higgs and top quark masses indicate that the Standard Model (SM) effective potential develops an instability at high field values. The scale of…
Interplay of Infrared Divergences and Gauge-Dependence of the Effective Potential
J. R. Espinosa, M. Garny, T. Konstandin
The perturbative effective potential suffers infrared (IR) divergences in gauges with massless Goldstones in their minima (like Landau or Fermi gauges) but the problem can be fixed…
Renormalization-group flow of the effective action of cosmological large-scale structures
Stefan Floerchinger, Mathias Garny, Nikolaos Tetradis +1
Following an approach of Matarrese and Pietroni, we derive the functional renormalization group (RG) flow of the effective action of cosmological large-scale structures. Perturbati…
Time-Sliced Perturbation Theory II: Baryon Acoustic Oscillations and Infrared Resummation
Diego Blas, Mathias Garny, Mikhail M. Ivanov +1
We use time-sliced perturbation theory (TSPT) to give an accurate description of the infrared non-linear effects affecting the baryonic acoustic oscillations (BAO) present in the d…