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.

Bellm, J., Buckley, A., Chen, X., Ridder, A., Gehrmann, T., Glover, N., et al. (2020). Jet cross sections at the LHC and the quest for higher precision. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 80(2) [10.1140/epjc/s10052-019-7574-x].

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

Re E.
2020

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.
Articolo in rivista - Articolo scientifico
QCD, LHC, jets, (N)NLO, Monte Carlo generators
English
Bellm, J., Buckley, A., Chen, X., Ridder, A., Gehrmann, T., Glover, N., et al. (2020). Jet cross sections at the LHC and the quest for higher precision. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 80(2) [10.1140/epjc/s10052-019-7574-x].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/399285
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