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

We first build a minimal model of vector-like 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 t...

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Autores principales: Azatov, A., Bondu, O., Falkowski, A., Felcini, M., Gascon-Shotkin, S., Ghosh, D.K., Moreau, G., Sekmen, S.
Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.85.115022
http://cds.cern.ch/record/1436933
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author Azatov, A.
Bondu, O.
Falkowski, A.
Felcini, M.
Gascon-Shotkin, S.
Ghosh, D.K.
Moreau, G.
Sekmen, S.
author_facet Azatov, A.
Bondu, O.
Falkowski, A.
Felcini, M.
Gascon-Shotkin, S.
Ghosh, D.K.
Moreau, G.
Sekmen, S.
author_sort Azatov, A.
collection CERN
description We first build a minimal model of vector-like 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 vector-like top-partner ($t_2$) decay, $pp \to t_2 \bar t_2$, $t_2\to t h$, allows to discover a Higgs boson at the LHC and measure its mass, through the decay channels $h\to \gamma\gamma$ or $h\to ZZ$. We also comment on the recent hint in LHC data from a possible $\sim 125$ GeV Higgs scalar, in the presence of heavy vector-like top quarks.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14369332021-07-29T05:41:59Zdoi:10.1103/PhysRevD.85.115022http://cds.cern.ch/record/1436933engAzatov, A.Bondu, O.Falkowski, A.Felcini, M.Gascon-Shotkin, S.Ghosh, D.K.Moreau, G.Sekmen, S.Higgs boson production via vector-like top-partner decays: diphoton or multilepton plus multijets channels at the LHCParticle Physics - PhenomenologyWe first build a minimal model of vector-like 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 vector-like top-partner ($t_2$) decay, $pp \to t_2 \bar t_2$, $t_2\to t h$, allows to discover a Higgs boson at the LHC and measure its mass, through the decay channels $h\to \gamma\gamma$ or $h\to ZZ$. We also comment on the recent hint in LHC data from a possible $\sim 125$ GeV Higgs scalar, in the presence of heavy vector-like top quarks.We first build a minimal model of vector-like 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 vector-like top-partner ($t_2$) decay, $pp \to t_2 \bar t_2$, $t_2\to t h$, allows to discover a Higgs boson at the LHC and measure its mass, through the decay channels $h\to \gamma\gamma$ or $h\to ZZ$. We also comment on the recent hint in LHC data from a possible $\sim 125$ GeV Higgs scalar, in the presence of heavy vector-like top quarks.arXiv:1204.0455LPT-ORSAY-12-30oai:cds.cern.ch:14369332012-04-03
spellingShingle Particle Physics - Phenomenology
Azatov, A.
Bondu, O.
Falkowski, A.
Felcini, M.
Gascon-Shotkin, S.
Ghosh, D.K.
Moreau, G.
Sekmen, S.
Higgs boson production via vector-like top-partner decays: diphoton or multilepton plus multijets channels at the LHC
title Higgs boson production via vector-like top-partner decays: diphoton or multilepton plus multijets channels at the LHC
title_full Higgs boson production via vector-like top-partner decays: diphoton or multilepton plus multijets channels at the LHC
title_fullStr Higgs boson production via vector-like top-partner decays: diphoton or multilepton plus multijets channels at the LHC
title_full_unstemmed Higgs boson production via vector-like top-partner decays: diphoton or multilepton plus multijets channels at the LHC
title_short Higgs boson production via vector-like top-partner decays: diphoton or multilepton plus multijets channels at the LHC
title_sort higgs boson production via vector-like top-partner decays: diphoton or multilepton plus multijets channels at the lhc
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.85.115022
http://cds.cern.ch/record/1436933
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