86 citations · 110 across the 3 of their papers we have counts for
3 papers
Primordial black holes and inflation from double-well potentials
Alexandros Karam, Niko Koivunen, Eemeli Tomberg +2
We investigate the formation of large peaks in the inflationary curvature power spectrum from double-well potentials. In such scenarios, the initial CMB spectrum is created at larg…
Scale-invariance, dynamically induced Planck scale and inflation in the Palatini formulation
Ioannis D. Gialamas, Alexandros Karam, Thomas D. Pappas +2
We present two scale invariant models of inflation in which the addition of quadratic in curvature terms in the usual Einstein-Hilbert action, in the context of Palatini formulatio…
Minimal Anomalous U(1)' Extension of the MSSM
Pascal Anastasopoulos, Francesco Fucito, Andrea Lionetto +3
We study an extension of the MSSM by an anomalous abelian vector multiplet and a Stückelberg multiplet. The anomalies are cancelled by the Green-Schwarz mechanism and the addition…