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arXiv · 1309.6907

$ttH$ Anomalous Coupling in Double Higgs Production

Kenji Nishiwaki·Saurabh Niyogi·Ambresh Shivaji
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Abstract

We study the effects of top-Higgs anomalous coupling in the production of a pair of Higgs boson via gluon fusion at the Large Hadron Collider (LHC). The introduction of anomalous $ttH$ coupling can alter the hadronic double Higgs boson cross section and can lead to characteristic changes in certain kinematic distributions. We perform a global analysis based on available LHC data on the Higgs to constrain the parameters of $ttH$ anomalous coupling. Possible overlap of the predictions due to anomalous $ttH$ coupling with those due to anomalous trilinear Higgs coupling is also studied. We briefly discuss the effect of the anomalous $ttH$ coupling on the $HZ$ production via gluon fusion which is one of the main backgrounds in the $HH \to γγb {\bar b}$ channel.

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Kenji Nishiwaki, Saurabh Niyogi, Ambresh Shivaji. 2014-04-02. $ttH$ Anomalous Coupling in Double Higgs Production. https://doi.org/10.1007/jhep04(2014)011

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