Dilepton signal of a type-II seesaw model at CERN LHC: Reveals a TeV scale B-L symmetry

Journal Article · Wed Sep 01 04:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.053007· OSTI ID:21432949

Majee, Swarup Kumar; Sahu, Narendra ^[1]

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1. 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, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 82; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
BARYONS
BOSONS
CENTER-OF-MASS SYSTEM
CERN
CERN LHC
CHARGED PARTICLES
COUPLING CONSTANTS
CYCLIC ACCELERATORS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
EXPECTATION VALUE
FERMIONS
GAUGE INVARIANCE
GEV RANGE
GEV RANGE 100-1000
HADRONS
HIGGS BOSONS
HYPERONS
INTERNATIONAL ORGANIZATIONS
INVARIANCE PRINCIPLES
LUMINOSITY
MASS
OPTICAL PROPERTIES
PARTICLE DECAY
PHYSICAL PROPERTIES
POSTULATED PARTICLES
SIMULATION
STORAGE RINGS
STRANGE PARTICLES
SYMMETRY
SYNCHROTRONS
TEV RANGE
TEV RANGE 01-10
XI BARYONS
XI MINUS PARTICLES
XI NEUTRAL PARTICLES
XI PARTICLES