Accelerating LHC phenomenology with analytic one-loop amplitudes: A C++ interface to MCFM

Abstract

The evaluation of one-loop matrix elements is one of the main bottlenecks in precision calculations for the high-luminosity phase of the Large Hadron Collider. To alleviate this problem, a new C++ interface to the MCFM parton-level Monte Carlo is introduced, giving access to an extensive library of analytic results for one-loop amplitudes. Timing comparisons are presented for a large set of Standard Model processes. These are relevant for high-statistics event simulation in the context of experimental analyses and precision fixed-order computations.

Revised version submitted to EPJC; contains new section on numerical stability

References in corpus (16)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• Event generation with SHERPA 1.1
• Vector boson pair production at the LHC
• An Automated Implementation of On-Shell Methods for One-Loop Amplitudes
• GoSam-2.0: a tool for automated one-loop calculations within the Standard Model and beyond
• Precise Predictions for W + 4 Jet Production at the Large Hadron Collider
• Next-to-Leading Order QCD Predictions for W+3-Jet Distributions at Hadron Colliders
• Recola2: REcursive Computation of One-Loop Amplitudes 2
• One-loop phi-MHV amplitudes using the unitarity bootstrap
• One-loop phi-MHV amplitudes using the unitarity bootstrap: the general helicity case
• One-loop helicity amplitudes for H -> gluons: the all-minus configuration
• Triphoton production at hadron colliders
• Top-quark loop corrections in Z+jet and Z+2 jet production
• Monte Carlo event generators for high energy particle physics event simulation
• Four photon production at the LHC: an application of 2->4 analytic unitarity

Cited by in corpus (10)

• Accelerating Monte Carlo event generation -- rejection sampling using neural network event-weight estimates
• Event Generators for High-Energy Physics Experiments
• Towards NNLO+PS Matching with Sector Showers
• Efficient phase-space generation for hadron collider event simulation
• Accelerating LHC event generation with simplified pilot runs and fast PDFs
• A Portable Parton-Level Event Generator for the High-Luminosity LHC
• Non-local slicing approaches for NNLO QCD in MCFM
• Vector boson pair production at one loop: analytic results for the process $q\bar{q}\ell \bar{\ell }{\ell }^{\prime }{\bar{\ell }}^{\prime }g$
• Towards a Fully Automated Differential ${\text{NNLO}}_{\text{EW}}$ Generator for Lepton Colliders
• Multiprocess imaging of nuclear modifications on parton distributions in proton-nucleus collisions