Optimising hadronic collider simulations using amplitude neural networks
        - URL: http://arxiv.org/abs/2202.04506v1
- Date: Wed, 9 Feb 2022 15:08:30 GMT
- Title: Optimising hadronic collider simulations using amplitude neural networks
- Authors: Ryan Moodie
- Abstract summary: We train neural network models on one-loop amplitudes from the NJet C++ library and interface them with the Sherpa Monte Carlo event generator.
We find excellent agreement in the distributions and a reduced total simulation time by a factor of thirty.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract:   Precision phenomenological studies of high-multiplicity scattering processes
at collider experiments present a substantial theoretical challenge and are
vitally important ingredients in experimental measurements. Machine learning
technology has the potential to dramatically optimise simulations for
complicated final states. We investigate the use of neural networks to
approximate matrix elements, studying the case of loop-induced diphoton
production through gluon fusion. We train neural network models on one-loop
amplitudes from the NJet C++ library and interface them with the Sherpa Monte
Carlo event generator to provide the matrix element within a realistic hadronic
collider simulation. Computing some standard observables with the models and
comparing to conventional techniques, we find excellent agreement in the
distributions and a reduced total simulation time by a factor of thirty.
 
      
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