Merging high energy with soft and collinear logarithms using HEJ and PYTHIA

Jeppe R. Andersen; Helen M. Brooks; Leif Lönnblad

doi:10.1007/JHEP09(2018)074

Merging high energy with soft and collinear logarithms using HEJ and PYTHIA

Jeppe R. Andersen, Helen M. Brooks, Leif Lönnblad

Theoretical Particle Physics - Undergoing reorganization

Research output: Contribution to journal › Article › peer-review

Abstract

We present a method to combine the all-order treatment of the High Energy Jets exclusive partonic Monte Carlo (HEJ) with the parton shower of Pythia8, while retaining the logarithmic accuracy of both. This procedure enables the generation of fully realistic and hadronised events with HEJ. Furthermore, the combination of the two allorder treatments leads to improvements in the quality of the description of observables, in particular for regions with disparate transverse scales.

Original language	English
Article number	74
Journal	Journal of High Energy Physics
Volume	2018
Issue number	9
DOIs	https://doi.org/10.1007/JHEP09(2018)074
Publication status	Published - 2018

Subject classification (UKÄ)

Subatomic Physics

Keywords

Perturbative QCD
Resummation

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10.1007/JHEP09(2018)074

Innovative Network for Monte Carlo Event Generators for LHC Physics
Lönnblad, L., Sjostrand, T., Bierlich, C., Rasmussen, C., Sjödahl, M., Bellm, J., Chakraborty, S., Gellersen, L., Lifson, A., Plumberg, C., Prestel, S., Reuschle, C., Shah, H., Törnkvist, R., Utheim, M. & Zapp, K.
2017/04/01 → 2021/03/31
Project: Network
QCD Phenomenology and Event Generator Development
Lönnblad, L. & Gustafson, G.
2017/01/01 → 2020/12/31
Project: Commissioned research

Cite this

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title = "Merging high energy with soft and collinear logarithms using HEJ and PYTHIA",

abstract = "We present a method to combine the all-order treatment of the High Energy Jets exclusive partonic Monte Carlo (HEJ) with the parton shower of Pythia8, while retaining the logarithmic accuracy of both. This procedure enables the generation of fully realistic and hadronised events with HEJ. Furthermore, the combination of the two allorder treatments leads to improvements in the quality of the description of observables, in particular for regions with disparate transverse scales.",

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AU - Andersen, Jeppe R.

AU - Brooks, Helen M.

AU - Lönnblad, Leif

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Y1 - 2018

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AB - We present a method to combine the all-order treatment of the High Energy Jets exclusive partonic Monte Carlo (HEJ) with the parton shower of Pythia8, while retaining the logarithmic accuracy of both. This procedure enables the generation of fully realistic and hadronised events with HEJ. Furthermore, the combination of the two allorder treatments leads to improvements in the quality of the description of observables, in particular for regions with disparate transverse scales.

KW - Perturbative QCD

KW - Resummation

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DO - 10.1007/JHEP09(2018)074

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VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 9

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ER -

Merging high energy with soft and collinear logarithms using HEJ and PYTHIA

Abstract

Subject classification (UKÄ)

Keywords

Access to Document

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Projects

Innovative Network for Monte Carlo Event Generators for LHC Physics

QCD Phenomenology and Event Generator Development

Cite this