197 citations · 742 across the 21 of their papers we have counts for
10 papers · 1 filter
Effective Potential in Finite Formulation of QFT
Sander Mooij, Mikhail Shaposhnikov
In recent works, we have shown how -point correlation functions in perturbative QFT can be computed without running into intermediate divergences. Here we want to illustrate exp…
Finite Callan-Symanzik renormalisation for multiple scalar fields
Sander Mooij, Mikhail Shaposhnikov
We study a finite, divergence free approach to renormalisation originally proposed in the early '70s by Blaer and Young, and Callan. It is based on equations similar to the Callan-…
QFT without infinities and hierarchy problem
Sander Mooij, Mikhail Shaposhnikov
The standard way to do computations in Quantum Field Theory (QFT) often results in the requirement of dramatic cancellations between contributions induced by a "heavy" sector into…
Hidden and explicit quantum scale invariance
Sander Mooij, Mikhail Shaposhnikov, Thibault Voumard
There exist renormalisation schemes that explicitly preserve the scale invariance of a theory at the quantum level. Imposing a scale invariant renormalisation breaks renormalisabil…
Quantum corrections in Higgs inflation: the Standard Model case
Damien P. George, Sander Mooij, Marieke Postma
We compute the one-loop renormalization group equations for Standard Model Higgs inflation. The calculation is done in the Einstein frame, using a covariant formalism for the multi…
Top-Goldstone coupling spoils renormalization of Higgs inflation
Damien P. George, Sander Mooij, Marieke Postma
We examine renormalization of Higgs inflation in the context of the full Standard Model. In the fermionic sector of the theory there is a parametrically large top-Goldstone couplin…
Quantum corrections in Higgs inflation: the real scalar case
Damien P. George, Sander Mooij, Marieke Postma
We present a critical discussion of quantum corrections, renormalisation, and the computation of the beta functions and the effective potential in Higgs inflation. In contrast with…
Gauge field production in SUGRA inflation: local non-Gaussianity and primordial black holes
Andrei Linde, Sander Mooij, Enrico Pajer
When inflation is driven by a pseudo-scalar field χcoupled to vectors as α/4 χF \tilde F, this coupling may lead to a copious production of gauge quanta, which in turns induces non…
Effective action for the Abelian Higgs model in FLRW
Damien P. George, Sander Mooij, Marieke Postma
We compute the divergent contributions to the one-loop action of the U(1) Abelian Higgs model. The calculation allows for a Friedmann-Lemaitre-Robertson-Walker space-time and a tim…
Sgoldstino inflation
Ana Achúcarro, Sander Mooij, Pablo Ortiz +1
We discuss the possibility that inflation is driven by the sgoldstino, the superpartner of the goldstino. Unlike in generic supergravity scenarios, the sgoldstino decouples from al…