Dilepton signal of a type-II seesaw model at CERN LHC: Reveals a TeV scale B-L symmetry
- Center for Particle Physics and Phenomenology (CP3), Universite Catholique de Louvain, Chemin du Cyclotron 2, B-1348 Louvain-la-Neuve (Belgium)
We explore the discovery potential of doubly charged Higgs bosons ({xi}{sup {+-}{+-}}) 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}{sup {+-}{+-}} for a small vacuum expectation value ((less-or-similar sign)10{sup 5} eV) of the triplet scalar {xi}=({xi}{sup ++},{xi}{sup +},{xi}{sup 0}) of mass (less-or-similar sign)1 TeV. To be specific, for a mass range of 200-1000 GeV of {xi}{sup {+-}{+-},} 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-or-similar sign)30 fb{sup -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.
- OSTI ID:
- 21432949
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 82, Issue 5; Other Information: DOI: 10.1103/PhysRevD.82.053007; (c) 2010 American Institute of Physics; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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CERN LHC
CHARGED PARTICLES
COUPLING CONSTANTS
EXPECTATION VALUE
GAUGE INVARIANCE
GEV RANGE 100-1000
HIGGS BOSONS
LUMINOSITY
MASS
PARTICLE DECAY
SIMULATION
SYMMETRY
TEV RANGE 01-10
XI MINUS PARTICLES
XI NEUTRAL PARTICLES
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CYCLIC ACCELERATORS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
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HYPERONS
INTERNATIONAL ORGANIZATIONS
INVARIANCE PRINCIPLES
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
POSTULATED PARTICLES
STORAGE RINGS
STRANGE PARTICLES
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XI BARYONS
XI PARTICLES