5 papers
Scalarful double beta decay
Jordy de Vries, Lukáš Gráf, Vaisakh Plakkot +1
We revisit scalar emissions in double beta decays of nuclei, often discussed in the context of Majoron models, in light of the latest developments on the study of neutrinoless doub…
Cartography of LNV dim-9 SMEFT: Implications for Radiative Neutrino Masses and
Fabian Esser, Lukáš Gráf, Chandan Hati
We perform a systematic study of lepton-number-violating (LNV) dimension-9 operators in the Standard Model Effective Field Theory (SMEFT) that can mediate neutrinoless double beta…
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…
Non-conservation of Lepton Numbers in the Neutrino Sector Could Change the Prospects for Core Collapse Supernova Explosions
Anna M. Suliga, Patrick Chi-Kit Cheong, Julien Froustey +5
We show that interactions violating the conservation of lepton numbers in the neutrino sector could significantly alter the standard low entropy picture for the pre-supernova colla…
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-leadi…