Probing vector-like quark models with Higgs-boson pair production

Abstract

We investigate Higgs-boson pair production at the LHC when the final state system arises from decays of vector-like quarks coupling to the Higgs boson and the Standard Model quarks. Our phenomenological study includes next-to-leading-order QCD corrections, which are important to guarantee accurate predictions, and focuses on a detailed analysis of a di-Higgs signal in the four $b$-jet channel. Whereas existing Run II CMS and ATLAS analyses are not specifically designed for probing non-resonant, vector-like-quark induced, di-Higgs production, we show that they nevertheless offer some potential for these modes. We then investigate the possibility of distinguishing between the various di-Higgs production mechanisms by exploiting the kinematic properties of the signal.

25 pages, 12 figures and 1 table; figure 1 is updated for correct bound, references are added, version matches with article published in JHEP

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Cited by in corpus (12)

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• The gluon-fusion production of Higgs boson pair: N${}^3$LO QCD corrections and top-quark mass effects
• N${}^3$LO+N${}^3$LL QCD improved Higgs pair cross sections
• Search for single production of the vector-like top partner at the 14 TeV LHC
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• Disentangling new physics effects on non-resonant Higgs boson pair production from gluon fusion
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• Di-Higgs production as a probe of flavor changing neutral Yukawa couplings