TY - JOUR AU - Alcaide, J. AU - Chala, M. AU - Santamaria, A. PY - 2018 DA - 2018// TI - LHC signals of radiatively-induced neutrino masses and implications for the Zee-Babu model T2 - Phys. Lett. B JO - Physics Letters B SP - 107 EP - 116 VL - 779 PB - Elsevier Science Bv KW - Lepton-number violation KW - LHC searches KW - Higgs sector KW - Doubly-charged scalars AB - Contrary to the see-saw models, extended Higgs sectors leading to radiatively-induced neutrino masses do require the extra particles to be at the TeV scale. However, these new states have often exotic decays, to which experimental LHC searches performed so far, focused on scalars decaying into pairs of same-sign leptons, are not sensitive. In this paper we show that their experimental signatures can start to be tested with current LHC data if dedicated multi-region analyses correlating different observables are used. We also provide high-accuracy estimations of the complicated Standard Model backgrounds involved. For the case of the Zee-Babu model, we show that regions not yet constrained by neutrino data and low-energy experiments can be already probed, while most of the parameter space could be excluded at the 95% C.L. in a high-luminosity phase of the LHC. SN - 0370-2693 UR - http://arxiv.org/abs/1710.05885 UR - https://doi.org/10.1016/j.physletb.2018.02.001 DO - 10.1016/j.physletb.2018.02.001 LA - English N1 - WOS:000429098900012 ID - Alcaide_etal2018 ER -