Automated one-loop calculations with GoSam

Abstract

In this talk, the program package GOSAM is presented, which can be used for the automated calculation of one-loop amplitudes for multi-particle processes. The integrands are generated in terms of Feynman diagrams and can be reduced by d-dimensional integrand-level decomposition, or tensor reduction, or a combination of both. Through various examples we show that GOSAM can produce one-loop amplitudes for both QCD and electroweak theory; model files for theories Beyond the Standard Model can be linked as well.

Reference added in version 2. Talk given at the 10th International Symposium on Radiative Corrections - RADCOR 2011; Mamallapuram, India, September 2011

Cited by in corpus (31)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• UFO - The Universal FeynRules Output
• SARAH 4: A tool for (not only SUSY) model builders
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• FeynCalc 9.3: New features and improvements
• GoSam-2.0: a tool for automated one-loop calculations within the Standard Model and beyond
• Scattering amplitudes over finite fields and multivariate functional reconstruction
• Automatic evaluation of UV and R2 terms for beyond the Standard Model Lagrangians: a proof-of-principle
• Two-loop Integrand Decomposition into Master Integrals and Surface Terms
• Numerical evaluation of virtual corrections to multi-jet production in massless QCD
• Computing decay rates for new physics theories with FeynRules and MadGraph5/aMC@NLO
• Scattering Amplitudes from Multivariate Polynomial Division
• Update of the Binoth Les Houches Accord for a standard interface between Monte Carlo tools and one-loop programs
• Higgs boson pair production in non-linear Effective Field Theory with full $m_t$-dependence at NLO QCD
• Uncertainties in NLO + parton shower matched simulations of inclusive jet and dijet production
• NLO QCD corrections to the production of Higgs plus two jets at the LHC
• Zero and one jet combined NLO analysis of the top quark forward-backward asymmetry
• NLO QCD corrections to multi-jet production at the LHC with a centre-of-mass energy of sqrt(s)=8 TeV
• Multi-leg One-loop Massive Amplitudes from Integrand Reduction via Laurent Expansion
• NLO QCD corrections to the production of W+ W- plus two jets at the LHC
• Interference effects for H --> WW/ZZ --> l anti-nu_l anti-l nu_l searches in gluon fusion at the LHC
• Photon isolation effects at NLO in gamma gamma + jet final states in hadronic collisions
• Model-Independent Production of a Top-Philic Resonance at the LHC
• Three-jet production in POWHEG
• Accelerating LHC event generation with simplified pilot runs and fast PDFs
• Electroweak top-quark pair production at the LHC with $Z^{\prime }$ bosons to NLO QCD in POWHEG
• The GAMBIT Universal Model Machine: from Lagrangians to Likelihoods
• Phenomenology of $t\bar{t}j+X$ production at the LHC
• Comparing efficient computation methods for massless QCD tree amplitudes: Closed Analytic Formulae versus Berends-Giele Recursion
• R2 vertices for the effective ggH theory
• Wbbj production at NLO with POWHEG+MiNLO