Eung Jin Chun, Pankaj Sharma
The type II seesaw mechanism introduces a hypercharged Higgs triplet to explain the observed neutrino masses and mixing. Among three triplet components, the doubly charged Higgs boson can be the lightest and decay mainly to same-sign di-leptons. Furthermore, the heavier singly charged or neutral Higgs boson produces a doubly charged Higgs boson through its fast gauge decay. This leads to a novel signature of same-sign tetra-leptons resulting from a pair production of same-sign doubly charged Higgs bosons at colliders. Such a phenomenon can occur in a certain range of the two-dimensional plane of the mass splitting among the triplet components and the triplet vacuum expectation value. After studying production cross-section of the same-sign tetra-lepton signal in this parameter space, we provide a LHC analysis of the predicted events for some benchmark points chosen to maximize the signal events.
View original:
http://arxiv.org/abs/1206.6278
No comments:
Post a Comment