Jet-veto in bottom-quark induced Higgs production at next-to-next-to-leading order

TL;DR

This work computes Higgs production in bottom-quark annihilation accompanied by jets within the five-flavor scheme, delivering NNLO results for H+0 jet and NLO results for H+≥1 jets, with and without b-tagging. The authors implement the anti-kT jet algorithm and provide a consistent framework to obtain jet-vetoed cross sections, including detailed treatment of b-tagged final states and the corresponding uncertainties. They demonstrate substantial reduction in scale uncertainties at higher perturbative orders and provide jet distributions and b-jet cross sections, with results applicable to LHC analyses and MSSM scenarios through rescaled bottom Yukawa couplings. The findings include 7 TeV and 14 TeV predictions, confirming reliable perturbative behavior and offering ready-to-use numbers and distributions for experimental studies.

Abstract

We present results for associated Higgs+n-jet production in bottom quark annihilation, for n=0 and n>=1 at NNLO and NLO accuracy, respectively. We consider both the cases with and without b-tagging. Numerical results are presented for parameters relevant for experiments at the LHC.

Figures (13)

• Figure 1: Leading order diagrams for the associated production of a Higgs with bottom-quarks in the (a) four- and (b) five-flavor scheme.
• Figure 2: Representative diagrams of the leading order channels (a) $b\bar{b}\rightarrow gH$ and (b) $bg \rightarrow bH$.
• Figure 3: Representative diagrams at .9 NLO: (a),(b) virtual and (c),(d) real corrections.
• Figure 4: Scale dependence of the inclusive $H+$jet cross section: (a) $\mu_\text{F}$- and (b) $\mu_R$-variation.
• Figure 5: $\mu_\text{F}$-dependence of (a) the $H+0$-jet cross section and (b) the total cross section, and the $\mu_R$-variation of the same quantities in (c) and (d).