no code implementations • 4 Feb 2021 • Xiao-Gang He, Xiao-Dong Ma
We work to the first nontrivial orders in each effective field theory, collect along the way the matching conditions, and express the decay rates in terms of the Wilson coefficients associated with the dim-12 operators in SMEFT and the low energy constants pertinent to B$\chi$PT.
High Energy Physics - Phenomenology
no code implementations • 15 Jan 2021 • Jin Sun, Yu Cheng, Xiao-Gang He
Or it may be the Majoron in models from lepton number violation in producing seesaw Majorana neutrino masses if the symmetry breaking scale is much higher than the electroweak scale.
High Energy Physics - Phenomenology
