Work

Automated event generation for loop-induced processes

Year: 2015

Type: article

Abstract: We present the first fully automated implementation of cross-section computation and event generation for loop-induced processes. This work is integrated in the MadGraph5_aMC@NLO framework. We describe the optimisations implemented at the level of the matrix element evaluation, phase space integration and event generation allowing for the simulation of large multiplicity loop-induced processes. Along with some selected differential observables, we illustrate our results with a table showing inclusive cross-sections for all loop-induced hadronic scattering processes with up to three final states in the SM as well as for some relevant two to four processes. Many of these are computed here for the first time.

Source: Durham Research Online (Durham University)

DOI: 10.48550/arxiv.1507.00020

Authors: Hirschi, Valentin, Mattelaer, Olivier

Institutions: SLAC National Accelerator Laboratory, Durham University

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: European Commission, Belgian Federal Science Policy Office

Awards: Training Network for Monte Carlo Event Generators for LHC Physics, Fundamental interactions: at the boundary of theory, phenomenology and experiment (F-I.be).