Soft gluon resummation for gluon-induced Higgs Strahlung
By Robert V. Harlander, A. Kulesza, V. Theeuwes, Tom J. E. Zirke. Journal of High Energy Physics, 2014
181 citations recorded by the source corpus.
We study the effect of soft gluon emission on the total cross section predictions for the gg → 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 → 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 → ZH production at the LHC. The reduced scale uncertainty of the gg → HZ component translates into a decrease of the overall scale error by about a factor of two.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/9a1979361637f404ced26ec62b61d5386d938e79
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Citations in the corpus
- Collider physics at the precision frontier (2020, background): “ of the VHpair have been considered up to N3LL in Ref. [212] and have been found to be very close to the xed order NNLO result. Threshold resummation for the gg!ZH process has been calculated in Ref. [213]. The loop-induced gluon-initiated contributions are nite and enter at order 2s, i.e. formally ”
- Higgs Physics at the HL-LHC and HE-LHC (2019, methodology): “The results have been obtained using HAWK, combining NNLO QCD and NLO EW corrections [64, 63, 65, 66, 67, 68, 69], by means of a multiplicative scheme, as described in the YR4 studies (eq.”