0000000000991483

AUTHOR

H. B. Hartanto

showing 2 related works from this author

First Look at Two-Loop Five-Gluon Scattering in QCD.

2018

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.

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 physicsPhysical review letters
researchProduct

Applications of integrand reduction to two-loop five-point scattering amplitudes in QCD

2018

We review the current state-of-the-art in integrand level reduction for five-point scattering amplitudes at two loops in QCD. We present some benchmark results for the evaluation of the leading colour two-loop five-gluon amplitudes in the physical region as well as the partonic channels for two quarks and three gluons and four quarks and one gluon.

High Energy Physics - TheoryQuarkParticle physicsCurrent (mathematics)530 PhysicsHigh Energy Physics::LatticeNuclear TheoryFOS: Physical sciences10192 Physics Institute01 natural sciencesReduction (complexity)High Energy Physics - Phenomenology (hep-ph)0103 physical sciencesPoint (geometry)Nuclear Experiment010306 general physicsPhysicsQuantum chromodynamics1000 Multidisciplinary010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyGluonHigh Energy Physics - Phenomenology; High Energy Physics - Phenomenology; High Energy Physics - TheoryLoop (topology)Scattering amplitudeHigh Energy Physics - PhenomenologyHigh Energy Physics - Theory (hep-th)High Energy Physics::ExperimentProceedings of Loops and Legs in Quantum Field Theory — PoS(LL2018)
researchProduct