Correlative signatures of heavy Majorana neutrinos and doubly-charged Higgs bosons at the Large Hadron Collider

Authors:
  • WCWei Chao
    Wei Chao
  • ZSZong-Guo Si
    Zong-Guo Si
  • ZXZhi-Zhong Xing
    Zhi-Zhong Xing
  • SZShun Zhou
    Shun Zhou
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Abstract
We explore an intriguing possibility to test the type-II seesaw mechanism of neutrino mass generation at the Large Hadron Collider (LHC). We show that the lepton-number-violating signatures of heavy Majorana neutrinos N_i (for i=1, 2, 3) and doubly-charged Higgs bosons H^++(H^--) can be closely correlated with each other in a class of TeV-scale type-II seesaw models. Taking the minimal version of such models for example, we calculate the cross sections of pp -> l^+_\alpha l^+_\beta X (l^-_\alpha l^-_\beta X) processes mediated separately by N_1 and H^++(H^--), and illustrate their nontrivial correlation at the LHC.