One-loop finite corrections to seesaw neutrino masses

In the standard seesaw model, finite corrections to the neutrino mass matrix arise from one-loop self-energy diagrams mediated by heavy neutrinos. We discuss the impact that these corrections may have on the different entries of the tree-level effective neutrino mass matrix, paying special attention to their dependence with the seesaw model parameters. We also briefly comment on the implications these corrections might have on low-energy neutrino observables.
Comment: 3 pages, 2 figures. Prepared for the proceedings of the International Europhysics Conference on High Energy Physics, EPS-HEP 2011, Grenoble, France, July 21-27 2011