Speeding up MadGraph5_aMC@NLO

Mattelaer, O.; Ostrolenk, K.

doi:10.1140/epjc/s10052-021-09204-7

Speeding up MadGraph5_aMC@NLO

O. Mattelaer
(
- Louvain U., CP3 and
- Louvain U.
)
,
K. Ostrolenk
(
- Louvain U., CP3 and
- Manchester U.
)

Feb 1, 2021

Published in:

Eur.Phys.J.C 81 (2021) 5, 435

Published: May 20, 2021

e-Print:

2102.00773 [hep-ph]

DOI:

10.1140/epjc/s10052-021-09204-7

Report number:

MCNET-21-01,
CP3-21-01,
MAN/HEP/2021/001

View in:

ADS Abstract Service

reference search23 citations

Citations per year

Abstract: (arXiv)

In this paper we will describe two new optimisations implemented in MadGraph5_aMC@NLO, both of which are designed to speed-up the computation of leading-order processes (for any model). First we implement a new method to evaluate the squared matrix element, dubbed helicity recycling, which results in factor of two speed-up. Second, we have modified the multi-channel handling of the phase-space integrator providing tremendous speed-up for VBF-like processes (up to thousands times faster).

Note:

Submitted to European Physical Journal C

higher-order
phase space
helicity
Monte Carlo
vector boson: fusion
numerical calculations

References(58)

Figures(0)

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