Dilepton signal of a type-II seesaw model at CERN LHC: Reveals a TeV scale B-L symmetry
(2010) Physical Review. D, Particles, Fields, Gravitation and Cosmology — Vol. 82, n° 5 (2010)
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- Abstract
- We explore the discovery potential of doubly charged Higgs bosons (xi(+/-+/-)) at the CERN Large Hadron Collider (LHC). For moderate values of the coupling constants in the original Type-II seesaw model, these doubly charged Higgs bosons are not accessible at any present or near future collider experiments. In a gauged B - L symmetric model we introduce two triplet scalars to execute a variant of type-II seesaw at the TeV scale. This leads to a clear like-sign dilepton signal in the decay mode of xi(+/-+/-) for a small vacuum expectation value (less than or similar to 10(5) eV) of the triplet scalar xi = (xi(++), xi(+), xi(0)) of mass less than or similar to 1 TeV. To be specific, for a mass range of 200-1000 GeV of xi(+/-+/-), the like-sign dilepton signal can be detected at CERN LHC at a center of mass energy 14 TeV with an integrated luminosity, say, greater than or similar to 30 fb(-1). The same analysis is also pursued with center of mass energies 7 TeV and 10 TeV as well. We also comment on the decay mode of singly charged scalars and the neutral B - L gauge boson in this model.
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Majee, S. K., & Sahu, N. (2010). Dilepton signal of a type-II seesaw model at CERN LHC: Reveals a TeV scale B-L symmetry. Physical Review. D, Particles, Fields, Gravitation and Cosmology, 82(5). https://doi.org/10.1103/PhysRevD.82.053007 (Original work published 2010)