83 citations · 221 across the 14 of their papers we have counts for
16 papers
Radiative corrections to double- decay and their impact on experimental analyses
Jordy de Vries, Emanuele Mereghetti, Saad el Morabit +1
We present a comprehensive study of the radiative corrections to two-neutrino and neutrinoless double- decay within a heavy-nucleus effective field theory. We c…
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} ϕF {\tilde F}…
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 radia…
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…
Sterile neutrino dark matter within the SMEFT
Kaori Fuyuto, Jacky Kumar, Emanuele Mereghetti +2
Sterile neutrinos with masses at the scale and mixing to the active neutrinos offer an elegant explanation of the observed dark matter (DM) density. However, the ver…
Perturbatively including inhomogeneities in axion inflation
Valerie Domcke, Yohei Ema, Stefan Sandner
Axion inflation, i.e. an axion-like inflaton coupled to an Abelian gauge field through a Chern-Simons interaction, comes with a rich and testable phenomenology. This is particularl…
Feebly Interacting Particles: FIPs 2022 workshop report
C. Antel, M. Battaglieri, J. Beacham +75
Particle physics today faces the challenge of explaining the mystery of dark matter, the origin of matter over anti-matter in the Universe, the origin of the neutrino masses, the a…
Predicting the baryon asymmetry with degenerate right-handed neutrinos
S. Sandner, P. Hernandez, J. Lopez-Pavon +1
We consider the generation of a baryon asymmetry in an extension of the Standard Model with two singlet Majorana fermions that are degenerate above the electroweak phase transition…
Precision CMB constraints on eV-scale bosons coupled to neutrinos
Stefan Sandner, Miguel Escudero, Samuel J. Witte
The cosmic microwave background (CMB) has proven to be an invaluable tool for studying the properties and interactions of neutrinos, providing insight not only into the sum of neut…
Bounds on right-handed neutrino parameters from observable leptogenesis
Pilar Hernandez, Jacobo Lopez-Pavon, Nuria Rius +1
We revisit the generation of a matter-antimatter asymmetry in the minimal extension of the Standard Model with two singlet heavy neutral leptons (HNL) that can explain neutrino mas…
Unstable Neutrinos can Relax Cosmological Mass Bounds
Stefan Sandner
The light neutrino masses are at present most stringently constraint via cosmological probes. In particular the Planck collaboration reports at $9…
Relaxing Cosmological Neutrino Mass Bounds with Unstable Neutrinos
Miguel Escudero, Jacobo Lopez-Pavon, Nuria Rius +1
At present, cosmological observations set the most stringent bound on the neutrino mass scale. Within the standard cosmological model (CDM), the Planck collaboration reports $\s…
The Different Regimes of Axion Gauge Field Inflation
Valerie Domcke, Stefan Sandner
In axion gauge field inflation an axion-like particle driving cosmic inflation is coupled to the Chern-Simons density of an Abelian or non-Abelian gauge group. In the case of a non…
Reannihilation of self-interacting dark matter
Tobias Binder, Michael Gustafsson, Ayuki Kamada +2
We explore the phenomenology of having a second epoch of dark matter annihilation into dark radiation long after the standard thermal freeze-out. Such a hidden reannihilation proce…