Showing 2012 · hep-thShow all

57 papers · 2 filters

hep-th2012★ 3 cited

Field-theoretic Methods in Strongly-Coupled Models of General Gauge Mediation

Jean-François Fortin, Andreas Stergiou

An often-exploited feature of the operator product expansion (OPE) is that it incorporates a splitting of ultraviolet and infrared physics. In this paper we use this feature of the…

hep-th2012★ 83 cited

A note on obstinate tachyons in classical dS solutions

Ulf H. Danielsson, Gary Shiu, Thomas Van Riet +1

The stabilisation of the dilaton and volume in tree-level flux compactifications leads to model independent and thus very powerful existence and stability criteria for dS solutions…

hep-th2012★ 197 cited

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…

hep-th2012★ 129 cited

One-loop four-point amplitudes in pure and matter-coupled N <= 4 supergravity

John Joseph M. Carrasco, Marco Chiodaroli, Murat Gunaydin +1

We construct all supergravity theories that can be obtained through factorized orbifold projections of N=8 supergravity, exposing their double-copy structure, and calculate their o…

hep-th2012★ 136 cited

Symmetries and Loops in Inflation

Valentin Assassi, Daniel Baumann, Daniel Green

In this paper, we prove that the superhorizon conservation of the curvature perturbation zeta in single-field inflation holds as an operator statement. This implies that all zeta-c…

hep-th2012★ 70 cited

D = 5 maximally supersymmetric Yang-Mills theory diverges at six loops

Zvi Bern, John Joseph Carrasco, Lance J. Dixon +3

The connection of maximally supersymmetric Yang-Mills theory to the (2,0) theory in six dimensions has raised the possibility that it might be perturbatively ultraviolet finite in…