Leif Gellersen
Postdoc
Coloring mixed QCD/QED evolution
Author
Summary, in English
Parton showers are crucial components of high-energy physics calculations. Improving their modelling of QCD is an active research area since shower approximations are stumbling blocks for precision event generators. Naively, the interference between subdominant Standard-Model interactions and QCD can be of similar size to subleading QCD corrections. This article assesses the impact of QCD/QED interference effects in parton showers, by developing a sophisticated shower including QED, QCD at fixed color, and employing complete tree-level matrix element corrections for individual NC = 3 color configurations to embed interference. The resulting simulation indicates that QCD/QED interference effects are small for a simple test case and dwarfed by electro-weak resonance effects.
Department/s
- Theoretical Particle Physics - Has been reorganised
Publishing year
2022-08
Language
English
Publication/Series
SciPost Physics
Volume
13
Issue
2
Document type
Journal article
Publisher
SciPost
Topic
- Physical Sciences
Status
Published
ISBN/ISSN/Other
- ISSN: 2542-4653