@article{2ed65dd827934063944640e7c11e98cb,
title = "ZZ production at hadron colliders in NNLO QCD",
abstract = "We report on the first calculation of next-to-next-to-leading order (NNLO) QCD corrections to the inclusive production of Z-boson pairs at hadron colliders. Numerical results are presented for pp collisions with centre-of-mass energy (s) ranging from 7 to 14 TeV. The NNLO corrections increase the NLO result by an amount varying from 11% to 17% as 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 ±3% level.",
author = "F. Cascioli and T. Gehrmann and M. Grazzini and S. Kallweit and P. Maierh{\"o}fer and {Von Manteuffel}, A. and S. Pozzorini and D. Rathlev and L. Tancredi and E. Weihs",
note = "Funding Information: We would like to thank A. Denner, S. Dittmaier and L. Hofer for providing us with the Collier library. This research was supported in part by the Swiss National Science Foundation (SNF) under contracts CRSII2-141847 , 200021-144352 , 200020-149517 , PP00P2-128552 and by the Research Executive Agency (REA) of the European Union under the Grant Agreements PITN-GA-2010-264564 (LHCPhenoNet), PITN-GA-2012-316704 (HiggsTools), and the ERC Advanced Grant MC@NNLO ( 340983 ).",
year = "2014",
month = jul,
day = "30",
doi = "10.1016/j.physletb.2014.06.056",
language = "English",
volume = "735",
pages = "311--313",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "Elsevier B.V.",
}