124 citations · 607 across the 17 of their papers we have counts for
9 papers · 1 filter
Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetry
Fei Gao, Julia Harz, Chandan Hati +3
A large primordial lepton asymmetry can lead to successful baryogenesis by preventing the restoration of electroweak symmetry at high temperatures, thereby suppressing the sphalero…
Local clustering of relic neutrinos: Comparison of kinetic field theory and the Vlasov equation
Emil Brinch Holm, Stefan Zentarra, Isabel M. Oldengott
Gravitational clustering in our cosmic vicinity is expected to lead to an enhancement of the local density of relic neutrinos. We derive expressions for the neutrino density, using…
Sphaleron freeze-in baryogenesis with gravitational waves from the QCD transition
Fei Gao, Julia Harz, Chandan Hati +3
A large primordial lepton asymmetry is capable of explaining the baryon asymmetry of the Universe (BAU) through suppression of the electroweak sphaleron rates (``sphaleron freeze-i…
Local clustering of relic neutrinos with kinetic field theory
Emil Brinch Holm, Isabel M. Oldengott, Stefan Zentarra
The density of relic neutrinos is expected to be enhanced due to clustering in our local neighbourhood at Earth. We introduce a novel analytical technique to calculate the neutrino…
LiteBIRD and CMB-S4 Sensitivities to Reheating in Plateau Models of Inflation
Marco Drewes, Lei Ming, Isabel Oldengott
We study the sensitivity of LiteBIRD and CMB-S4 to the reheating temperature and the inflaton coupling in three types of plateau-potential models of inflation, namely mutated hillt…
Weaker yet again: mass spectrum-consistent cosmological constraints on the neutrino lifetime
Joe Zhiyu Chen, Isabel M. Oldengott, Giovanni Pierobon +1
We consider invisible neutrino decay in the ultra-relativistic limit and compute the neutrino anisotropy loss rate relevant for the cosmic microwave background (C…
Cosmology meets functional QCD: First-order cosmic QCD transition induced by large lepton asymmetries
Fei Gao, Isabel M. Oldengott
The lepton flavour asymmetries of the Universe are observationally almost unconstrained before the onset of neutrino oscillations. We calculate the cosmic trajectory during the cos…
The cosmic QCD transition for large lepton flavour asymmetries
Mandy M. Middeldorf-Wygas, Isabel M. Oldengott, Dietrich Bödeker +1
We study the impact of large lepton flavour asymmetries on the cosmic QCD transition. Scenarios of unequal lepton flavour asymmetries are observationally almost unconstrained and t…
Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry
Mandy M. Wygas, Isabel M. Oldengott, Dietrich Bodeker +1
We investigate how a lepton asymmetry impacts the cosmic trajectory in the QCD phase diagram. We study the evolution of chemical potentials during the QCD epoch of the early Univer…