Soft gluon resummation for gluon-induced Higgs Strahlung

Abstract

We study the effect of soft gluon emission on the total cross section predictions for the $gg\to HZ$ associated Higgs production process at the LHC. To this end, we perform resummation of threshold corrections at the NLL accuracy in the absolute threshold production limit and in the threshold limit for production of a $ZH$ system with a given invariant mass. Analytical results and numerical predictions for various possible LHC collision energies are presented. The perturbative stability of the results is verified by including universal NNLL effects. We find that resummation significantly reduces the scale uncertainty of the $gg\to HZ$ contribution, which is the dominant source of perturbative uncertainty to $ZH$ production. We use our results to evaluate updated numbers for the total inclusive cross section of associated $pp\to ZH$ production at the LHC. The reduced scale uncertainty of the $gg\to HZ$ component translates into a decrease of the overall scale error by about a factor of two.

22 pages, 4 figures, 2 tables

References in corpus (13)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Jet substructure as a new Higgs search channel at the LHC
• Jet substructure as a new Higgs search channel at the LHC
• vh@nnlo - Higgs Strahlung at hadron colliders
• Higher-Order threshold effects to inclusive processes in QCD
• Threshold Resummation for Top-Pair Hadroproduction to Next-to-Next-to-Leading Log
• Associated ZH production at hadron colliders: the fully differential NNLO QCD calculation
• Resummation of Threshold Logarithms in Effective Field Theory For DIS, Drell-Yan and Higgs Production
• Origin of the Large Perturbative Corrections to Higgs Production at Hadron Colliders
• Resummed Higgs cross section at N${}^3$LL
• Soft-gluon resummation for pseudoscalar Higgs boson production at hadron colliders
• Renormalization-group improved predictions for Higgs boson production at large $p_T$

Cited by in corpus (9)

• Evidence for the $H\to b\bar{b}$ decay with the ATLAS detector
• A search for the $Z\gamma$ decay mode of the Higgs boson in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Higgsstrahlung at NNLL${}^{\prime }+$NNLO Matched to Parton Showers in GENEVA
• NLO QCD+EW predictions for HV and HV+jet production including parton-shower effects
• $ZH$ production in gluon fusion: two-loop amplitudes with full top quark mass dependence
• Measurement of $VH$, $H\to b\bar{b}$ production as a function of the vector-boson transverse momentum in 13 TeV $pp$ collisions with the ATLAS detector
• Associated production of Higgs boson with vector boson at threshold N${}^3$LO in QCD
• Impact of gluon polarization on Higgs plus jet production at the LHC
• Higgs and Z boson associated production via gluon fusion in the SM and the 2HDM