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Jet cross sections at the LHC and the quest for higher precision

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arxiv 1903.12563 v1 pith:3VKTVMSV submitted 2019-03-29 hep-ph hep-ex

Jet cross sections at the LHC and the quest for higher precision

Johannes Bellm , Andy Buckley , Xuan Chen , Aude Gehrmann-De Ridder , Thomas Gehrmann , Nigel Glover , Alexander Huss , Joao Pires
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Stefan H\"oche Joey Huston Silvan Kuttimalai Simon Pl\"atzer Emanuele Re
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classification hep-ph hep-ex
keywords functionorderradiuscalculationscrossdependenceobtainedplus
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We perform a phenomenological study of $Z$ plus jet, Higgs plus jet and di-jet production at the Large Hadron Collider. We investigate in particular the dependence of the leading jet cross section on the jet radius as a function of the jet transverse momentum. Theoretical predictions are obtained using perturbative QCD calculations at the next-to and next-to-next-to-leading order, using a range of renormalization and factorization scales. The fixed order predictions are compared to results obtained from matching next-to-leading order calculations to parton showers. A study of the scale dependence as a function of the jet radius is used to provide a better estimate of the scale uncertainty for small jet sizes. The non-perturbative corrections as a function of jet radius are estimated from different generators.

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Cited by 2 Pith papers

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  1. Les Houches study on inclusive jet production at NNLO+NNLL

    hep-ph 2026-04 unverdicted novelty 6.0

    NNLL resummation shows that scale variations drastically underestimate higher-order uncertainties in NNLO inclusive jet cross sections for typical jet radii, rendering such estimates unreliable.

  2. New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC

    hep-ph 2019-12 unverdicted novelty 5.0

    New CT18 PDFs at NLO and NNLO from global fit to HERA plus LHC jet, Drell-Yan, top-pair and Z data, with Hessian errors, Lagrange-multiplier studies, and alternate sets for data tensions and scale choices.