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29 March 2024
 
  » arxiv » 1004.0841

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Dilepton Signal of a Type-II Seesaw at CERN LHC: Reveals a TeV Scale B-L Symmetry
Swarup Kumar Majee ; Narendra Sahu ;
Date 6 Apr 2010
AbstractWe explore the discovery potential of doubly charged Higgs bosons (xi^{pmpm}) 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 by 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^{pmpm} for a small vacuum expectation value (lsim 10^5 eV) of the triplet scalar xi= (xi^{++}, xi^+, xi^0) of mass lsim 1 TeV. To be specific, for a mass range of 200-1000 GeV of xi^{pmpm}, the like-sign dilepton signal can be detected at CERN LHC at a center of mass energy 14 TeV with an integrated luminosity > 30 { m 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 neutral B-L gauge boson in this model.
Source arXiv, 1004.0841
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