Double Higgs production at LHC, see-saw type-II and Georgi-Machacek model

The double Higgs production in the models with isospin-triplet scalars is studied. It is shown that in the see-saw type-II model, the mode with an intermediate heavy scalar, pp → H + X → 2 h + X , may have the cross section that is comparable with that in the Standard Model. In the Georgi-Machacek m...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2015-03, Vol.120 (3), p.369-375
Main Authors: Godunov, S. I., Vysotsky, M. I., Zhemchugov, E. V.
Format: Article
Language:English
Subjects:
CERN LHC
Classical and Quantum Gravitation
COMPARATIVE EVALUATIONS
CROSS SECTIONS
Elementary Particles
EXPECTATION VALUE
HIGGS BOSONS
HIGGS MODEL
ISOSPIN
Particle and Nuclear Physics
PARTICLE PRODUCTION
Physics
Physics and Astronomy
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PROTON-PROTON INTERACTIONS
Quantum Field Theory
Relativity Theory
SCALARS
Solid State Physics
STANDARD MODEL
TRIPLETS
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Summary:The double Higgs production in the models with isospin-triplet scalars is studied. It is shown that in the see-saw type-II model, the mode with an intermediate heavy scalar, pp → H + X → 2 h + X , may have the cross section that is comparable with that in the Standard Model. In the Georgi-Machacek model, this cross section could be much larger than in the Standard Model because the vacuum expectation value of the triplet can be large.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776115030073