Jet vetoing and Herwig++

Alex Schofield; Michael H. Seymour

doi:10.1007/JHEP01(2012)078

Jet vetoing and Herwig++

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

Abstract

We investigate the simulation of events with gaps between jets with a veto on additional radiation in the gap in Herwig++. We discover that the currently-used random treatment of radiation in the parton shower is generating some unphysical behaviour for wide-angle gluon emission in QCD 2 → 2 scatterings. We explore this behaviour quantitatively by making the same assumptions as the parton shower in the analytical calculation. We then modify the parton shower algorithm in order to correct the simulation of QCD radiation. © SISSA 2012.

Original language	English
Article number	078
Journal	The Journal of High Energy Physics
Volume	2012
Issue number	1
DOIs	https://doi.org/10.1007/JHEP01(2012)078
Publication status	Published - 2012

Keywords

Hadronic Colliders
Jets
QCD

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10.1007/JHEP01(2012)078

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title = "Jet vetoing and Herwig++",

abstract = "We investigate the simulation of events with gaps between jets with a veto on additional radiation in the gap in Herwig++. We discover that the currently-used random treatment of radiation in the parton shower is generating some unphysical behaviour for wide-angle gluon emission in QCD 2 → 2 scatterings. We explore this behaviour quantitatively by making the same assumptions as the parton shower in the analytical calculation. We then modify the parton shower algorithm in order to correct the simulation of QCD radiation. {\textcopyright} SISSA 2012.",

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year = "2012",

doi = "10.1007/JHEP01(2012)078",

language = "English",

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journal = "The Journal of High Energy Physics",

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AU - Seymour, Michael H.

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AB - We investigate the simulation of events with gaps between jets with a veto on additional radiation in the gap in Herwig++. We discover that the currently-used random treatment of radiation in the parton shower is generating some unphysical behaviour for wide-angle gluon emission in QCD 2 → 2 scatterings. We explore this behaviour quantitatively by making the same assumptions as the parton shower in the analytical calculation. We then modify the parton shower algorithm in order to correct the simulation of QCD radiation. © SISSA 2012.

KW - Hadronic Colliders

KW - Jets

KW - QCD

U2 - 10.1007/JHEP01(2012)078

DO - 10.1007/JHEP01(2012)078

M3 - Article

SN - 1126-6708

VL - 2012

JO - The Journal of High Energy Physics

JF - The Journal of High Energy Physics

IS - 1

M1 - 078

ER -

Jet vetoing and Herwig++

Abstract

Keywords

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