6533b829fe1ef96bd128999f
RESEARCH PRODUCT
ZZ production at hadron colliders in NNLO QCD
Lorenzo TancrediMassimiliano GrazziniDirk RathlevA. Von ManteuffelStefan KallweitPhilipp MaierhöferF. CascioliStefano PozzoriniErich WeihsThomas Gehrmannsubject
PhysicsScattering cross-sectionQuantum chromodynamicsParticle physicsNuclear and High Energy PhysicsLarge Hadron Collider010308 nuclear & particles physics530 PhysicsComputationHadronHigh Energy Physics::PhenomenologyNuclear TheoryFOS: Physical sciences10192 Physics Institute7. Clean energy01 natural sciencesNuclear physicsHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesRadiative transferHigh Energy Physics::Experiment3106 Nuclear and High Energy Physics010306 general physicsNuclear Experimentdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-05-09 | PHYSICS LETTERS B |