Single Top Quark Production with and without a Higgs Boson

TL;DR

This paper investigates the relationship between single top quark production processes with and without a Higgs boson, revealing strong correlations that can inform searches for new physics beyond the standard model.

Contribution

It demonstrates the correlation between $pp\rightarrow tHq$ and $pp\rightarrow tq$ processes and provides an estimate of the $pp\rightarrow tHq$ cross section based on $pp\rightarrow tq$ data.

Findings

The processes depend on the same three operators.

The estimated $pp\rightarrow tHq$ cross section is around 107 fb.

Current experimental limits are much higher than the predicted cross section.

Abstract

One way to probe new physics beyond standard model is to check the correlation among higher dimension operators in effective field theory. We examine the strong correlation between the processes of $pp\rightarrow tHq$ and $pp\rightarrow tq$ which both depend on the same three operators. The correlation indicates that, according to the data of $pp\rightarrow tq$, $\sigma_{tHq}=\big[106.8 \pm 64.8\big]~{\rm fb}$ which is far below the current upper limit $\sigma_{tHq}\leq 900~{\rm fb}$.