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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 | Abstract: | We 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 | Services: | Forum | Review | PDF | Favorites |
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