99 citations · 277 across the 15 of their papers we have counts for
15 papers
Quantum multicriticality and emergent symmetry in Dirac systems with two order parameters at three-loop order
Max Uetrecht, Igor F. Herbut, Michael M. Scherer +2
Two-dimensional materials with interacting Dirac excitations can host quantum multicritical behavior near the phase boundaries of the semimetallic and two-ordered phases. We study…
Revisiting the Theory in Three Dimensions at Large
Sandra Kvedaraitė, Tom Steudtner, Max Uetrecht
We investigate the --symmetric theory in three spacetime dimensions using dimensional regularisation and minimal subtraction. The predictions of other methods are scrut…
Stability of the Higgs Potential in the Standard Model and Beyond
Tom Steudtner
The question of stability of the Higgs potential in the Standard Model is revisited employing advanced theoretical precision and recent experimental results. We show that the top m…
MaRTIn -- Manual for the "Massive Recursive Tensor Integration"
Joachim Brod, Lorenz Hüdepohl, Emmanuel Stamou +1
We present MaRTIn, an extendable all-in-one package for calculating amplitudes up to two loops in an expansion in external momenta or using the method of infrared rearrangement. Re…
Old and new anomalies in charm
Rigo Bause, Hector Gisbert, Gudrun Hiller +3
The recent LHCb determination of the direct CP asymmetries in the decays hints at a sizeable breaking of two approximate symmetries of the SM: CP and U-s…
Asymptotic Safety Guaranteed at Four Loop
Daniel F. Litim, Nahzaan Riyaz, Emmanuel Stamou +1
We investigate a family of four-dimensional quantum field theories with weakly interacting ultraviolet fixed points up to four loop order in perturbation theory. Key new ingredient…
Vacuum Stability as a Guide for Model Building
Gudrun Hiller, Tim Höhne, Daniel F. Litim +1
We explain why vector-like fermions are natural candidates to lift the Standard Model vacuum instability. Results are further discussed from the viewpoint of criticality. Several m…
Two is better than one: The U-spin-CP anomaly in charm
Rigo Bause, Hector Gisbert, Gudrun Hiller +3
The recent measurement of the CP-asymmetry in the decay by LHCb, combined with , evidences a sizable CP-asymmetry in decays, which r…
B-Anomalies from flavorful U(1)' extensions, safely
Rigo Bause, Gudrun Hiller, Tim Höhne +2
extensions of the standard model with generation-dependent couplings to quarks and leptons are investigated as an explanation of anomalies in rare -decays, with an…
ARGES -- Advanced Renormalisation Group Equation Simplifier
Daniel F. Litim, Tom Steudtner
We present the initial release of ARGES, a toolkit for obtaining renormalisation group equations in perturbation theory. As such, ARGES can handle any perturbatively renormalisable…
Model Building from Asymptotic Safety with Higgs and Flavor Portals
Gudrun Hiller, Clara Hormigos-Feliu, Daniel F. Litim +1
We perform a comprehensive search for Standard Model extensions inspired by asymptotic safety. Our models feature a singlet matrix scalar field, three generations of vector-like le…
Asymptotic safety with Majorana fermions and new large N equivalences
Andrew D. Bond, Daniel F. Litim, Tom Steudtner
Using Majorana fermions and elementary mesons we find new massless quantum field theories with weakly interacting ultraviolet fixed points. We also find new classes of large N equi…
Anomalous Magnetic Moments from Asymptotic Safety
Gudrun Hiller, Clara Hormigos-Feliu, Daniel F. Litim +1
The measurements of the muon and electron anomalous magnetic moments hint at physics beyond the standard model. We show why and how models inspired by asymptotic safety can explain…
Asymptotically safe extensions of the Standard Model with flavour phenomenology
Gudrun Hiller, Clara Hormigos-Feliu, Daniel F. Litim +1
We investigate asymptotically safe extensions of the Standard Model with new matter fields arising in the TeV energy range. The new sector contains singlet scalars and vector-like…
UV conformal window for asymptotic safety
Andrew D. Bond, Daniel F. Litim, Gustavo Medina Vazquez +1
Interacting fixed points in four-dimensional gauge theories coupled to matter are investigated using perturbation theory up to three loop order. It is shown how fixed points, scali…