activity
19992026
most citedGravitational production of sterile neutrinos

14 citations · 17 across the 6 of their papers we have counts for

collaborators

6 papers

hep-ph2026

Testing -attractor P-model of inflation by Cosmic Microwave Background radiation

Michał Marciniak, Marek Olechowski, Stefan Pokorski

In a recently proposed approach to testing models of inflation by Cosmic Microwave Background (CMB) radiation the reheating temperature is directly expressed in terms of the CMB ob…

hep-ph2025

Quark, lepton and right-handed neutrino production via inflation

Duarte Feiteira, Fotis Koutroulis, Oleg Lebedev +1

Inflationary expansion of space-time provides us with an efficient particle production mechanism in the Early Universe. The fermion production efficiency depends critically on the…

hep-ph2024

Dark Branes for Dark Matter

Fotis Koutroulis, Eugenio Megias, Stefan Pokorski +1

We propose a setup for the origin of dark matter based on spacetime with a warped extra dimension and three branes: the Planck brane, the TeV brane, at a (few) TeV scale , and…

hep-ph2023★ 14 cited

Gravitational production of sterile neutrinos

Fotis Koutroulis, Oleg Lebedev, Stefan Pokorski

We consider gravitational production of singlet fermions such as sterile neutrinos during and after inflation. The production efficiency due to classical gravity is suppressed by t…

hep-ph2023

Phases of Pseudo-Nambu-Goldstone Bosons

Fotis Koutroulis, Matthew McCullough, Marco Merchand +2

We study the vacuum dynamics of pseudo-Nambu-Goldstone bosons (pNGBs) for spontaneous and explicit symmetry breaking. We determine the magnitude of expl…

hep-ph1999★ 3 cited

Status of low energy supersymmetry

S. Pokorski

We review: 1) constraints on low energy supersymmetry from the search for Higgs boson and from precision data, 2) dependence of coupling unification on the superpartner spectrum, 3…