We first build a minimal model of vectorlike quarks where the dominant Higgs boson production process at LHC-the gluon fusion-can be significantly suppressed, being motivated by the recent stringent constraints from the search for direct Higgs production over a wide Higgs mass range. Within this model, compatible with the present experimental constraints on direct Higgs searches, we demonstrate that the Higgs (h) production via a heavy vectorlike top-partner (t(2)) decay, pp -> t(2)(t) over bar (2), t(2) -> th, allows to discover a Higgs boson at the LHC and measure its mass, through the decay channels h -> gamma gamma or h -> ZZ. We also comment on the recent hint in LHC data from a possible similar to 125 GeV Higgs scalar, in the presence of heavy vectorlike top quarks.

Higgs boson production via vector-like top-partner decays: Diphoton or multilepton plus multijets channels at the LHC / Azatov, A.; Bondu, O.; Falkowski, A.; Felcini, M.; Gascon-Shotkin, S.; Ghosh, D. K.; Moreau, G.; Rodríguez-Marrero, A. Y.; Sekmen, S.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 85:11(2012), pp. 1-14. [10.1103/PhysRevD.85.115022]

Higgs boson production via vector-like top-partner decays: Diphoton or multilepton plus multijets channels at the LHC

Azatov, A.
;
2012

Abstract

We first build a minimal model of vectorlike quarks where the dominant Higgs boson production process at LHC-the gluon fusion-can be significantly suppressed, being motivated by the recent stringent constraints from the search for direct Higgs production over a wide Higgs mass range. Within this model, compatible with the present experimental constraints on direct Higgs searches, we demonstrate that the Higgs (h) production via a heavy vectorlike top-partner (t(2)) decay, pp -> t(2)(t) over bar (2), t(2) -> th, allows to discover a Higgs boson at the LHC and measure its mass, through the decay channels h -> gamma gamma or h -> ZZ. We also comment on the recent hint in LHC data from a possible similar to 125 GeV Higgs scalar, in the presence of heavy vectorlike top quarks.
85
11
1
14
115022
https://arxiv.org/abs/1204.0455
Azatov, A.; Bondu, O.; Falkowski, A.; Felcini, M.; Gascon-Shotkin, S.; Ghosh, D. K.; Moreau, G.; Rodríguez-Marrero, A. Y.; Sekmen, S.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11767/66269
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