6533b856fe1ef96bd12b1dc6
RESEARCH PRODUCT
First Look at Two-Loop Five-Gluon Scattering in QCD.
Simon BadgerTiziano PeraroChristian Brønnum-hansenH. B. Hartantosubject
Quantum chromodynamicsPhysicsHigh Energy Physics - TheoryParticle physicsBasis (linear algebra)Unitarity010308 nuclear & particles physicsScatteringHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyFOS: Physical sciencesGeneral Physics and Astronomy01 natural sciencesHelicityGluonMassless particleDecomposition methods Finite fields Gluon scattering Helicities Scattering process UnitarityHigh Energy Physics - Phenomenology; High Energy Physics - Phenomenology; High Energy Physics - TheoryHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics - Theory (hep-th)0103 physical sciencesPerturbation theory (quantum mechanics)010306 general physicsdescription
We compute the leading colour contributions to five-gluon scattering at two loops in massless QCD. The integrands of all independent helicity amplitudes are evaluated using d-dimensional generalised unitarity cuts and finite field reconstruction techniques. Numerical evaluation of the integral basis is performed with sector decomposition methods to obtain the first benchmark results for all helicity configurations of a 2 to 3 scattering process in QCD.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-03-02 | Physical review letters |