3 papers
hep-ph2025
Less structure on Mpc scales from decaying sterile neutrino dark matter
María Dias Astros, Lukáš Gráf, Stefan Vogl
Late decays of dark matter to a lighter, warm dark matter component are a known way to reduce the amplitude of the matter power spectrum on scales of Mpc. However, only very fe…
hep-ph2024
Spectrum in Chiral Effective Field Theory
Saad el Morabit, Ryan Bouabid, Vincenzo Cirigliano +3
We investigate two-neutrino double beta decay () in chiral effective field theory. We find contributions from weak magnetism and double-weak pion-exchange at next-to-leading-…
hep-ph2024
Radiative neutrino masses from dim-7 SMEFT: a simplified multi-scale approach
Kåre Fridell, Lukáš Gráf, Julia Harz +1
Lepton-number-violating interactions occur in the Standard Model Effective Field Theory (SMEFT) at odd dimensions starting from the dimension-5 Weinberg operator. Although the oper…