Probing Majorana Phases and Neutrino Mass Spectrum in the Higgs Triplet Model at the LHC

Understand

Doubly charged Higgs bosons (H^++) are a distinctive signature of the Higgs Triplet Model of neutrino mass generation.

• If H^++ is relatively light (m_{H^++} < 400GeV) it will be produced copiously at the LHC, which could enable precise measurements of the branching ratios of the decay channels H^++ to l_i l_j.
• Such branching ratios are determined solely by the neutrino mass matrix which allows the model to be tested at the LHC.
• We quantify the dependence of the leptonic branching ratios on the absolute neutrino mass and Majorana phases, and present the permitted values for the channels ee, emu and mumu.