ZZ production at hadron colliders in NNLO QCD

F. Cascioli; T. Gehrmann; M. Grazzini; S. Kallweit; P. Maierhöfer; A. von Manteuffel; S. Pozzorini; D. Rathlev; L. Tancredi; E. Weihs

doi:10.1016/j.physletb.2014.06.056

ZZ production at hadron colliders in NNLO QCD

High Energy Physics - Phenomenology 2015-06-19 v2

Authors: F. Cascioli , T. Gehrmann , M. Grazzini , S. Kallweit , P. Maierhöfer , A. von Manteuffel , S. Pozzorini , D. Rathlev , L. Tancredi , E. Weihs

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Abstract

We report on the first calculation of next-to-next-to-leading order (NNLO) QCD corrections to the inclusive production of ZZ pairs at hadron colliders. Numerical results are presented for pp collisions with centre-of-mass energy ( $\sqrt{s}$ ) ranging from 7 to 14 TeV. The NNLO corrections increase the NLO result by an amount varying from $11\%$ to $17\%$ as $\sqrt{s}$ goes from 7 to 14 TeV. The loop-induced gluon fusion contribution provides about $60\%$ of the total NNLO effect. When going from NLO to NNLO the scale uncertainties do not decrease and remain at the $\pm 3\%$ level.

Keywords

ZZ production hadron colliders NNLO QCD inclusive production gluon fusion scale uncertainties

Cite

@article{arxiv.1405.2219,
  title  = {ZZ production at hadron colliders in NNLO QCD},
  author = {F. Cascioli and T. Gehrmann and M. Grazzini and S. Kallweit and P. Maierhöfer and A. von Manteuffel and S. Pozzorini and D. Rathlev and L. Tancredi and E. Weihs},
  journal= {arXiv preprint arXiv:1405.2219},
  year   = {2015}
}

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Reference added, version published on Physics Letters B

ZZ production at hadron colliders in NNLO QCD

Abstract

Keywords

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