5 papers
Axion Inflation: Perturbative control in the strong backreaction regime
Valerie Domcke, Alexandros Papageorgiou, Marco Peloso +1
We study the strong backreaction regime in axion inflation, in which the friction from Abelian gauge fields generated via the pseudo-scalar interaction $\fracβ{4 M_p} ÏF {\tilde…
Radiative corrections to two-neutrino double-beta decay
Jordy de Vries, Emanuele Mereghetti, Saad el Morabit +1
We use heavy-nucleus effective field theory to compute radiative corrections to two-neutrino double- decay (). Our main result is the first derivation of a universal r…
Fast and Flexible Neutrino Decoupling Part I: The Standard Model
M. Escudero, G. Jackson, M. Laine +1
Cosmological determinations of the number of relativistic neutrino species, , are becoming increasingly accurate, and further improvements are expected both from C…
A Limit on the Total Lepton Number in the Universe from BBN and the CMB
Valerie Domcke, Miguel Escudero, Mario Fernandez Navarro +1
At temperatures below the QCD phase transition, any substantial lepton number in the Universe can only be present within the neutrino sector. In this work, we systematically explor…
Lepton Flavor Asymmetries: from the early Universe to BBN
Valerie Domcke, Miguel Escudero, Mario Fernandez Navarro +1
Large primordial lepton flavor asymmetries with almost vanishing total baryon-minus-lepton number can evade the usual BBN and CMB constraints if neutrino oscillations lead to perfe…