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

ABSTRACT: 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.

SUBMITTER: Bellm J

PROVIDER: S-EPMC7002464 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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

Bellm Johannes J Buckley Andy A Chen Xuan X Ridder Aude Gehrmann-De AG Gehrmann Thomas T Glover Nigel N Höche Stefan S Huss Alexander A Huston Joey J Kuttimalai Silvan S Pires Joao J Plätzer Simon S Re Emanuele E

The European physical journal. C, Particles and fields 20200205 2

We perform a phenomenological study of <i>Z</i> 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 ...[more]

PMID: 32089641

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