Any new neutrino physics at the TeV scale must include a suppression mechanism to keep its contribution to light neutrino masses small enough. We review some seesaw model examples with weakly broken lepton number, and comment on the expected effects at large colliders and in neutrino oscillations.
Frequency of additional chromosomal abnormalities in chronic myeloid leukemia (CML) is estimated to be 7% in chronic phase and increases to 40-70% in advanced disease. Progression of CML from chronic phase to accelerated phase or blast crisis is often associated with secondary chromosomal aberrations. We report an exceptional case of CML as debut in… (More)
We review the present electroweak precision data constraints on the mediators of the three types of seesaw mechanisms. Except in the seesaw mechanism of type I, with the heavy neutrino singlets being mainly produced through their mixing with the Standard Model lep-tons, LHC will be able to discover or put limits on new scalar (seesaw of type II) and lepton… (More)