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A new set of CMS tunes for novel colour reconnection models in PYTHIA8 based on underlying-event data
New sets of parameter tunes for two of the colour reconnection models implemented in the PYTHIA8 event generator, QCD-inspired and gluon move, are obtained based on the default CMS PYTHIA8 underlying-event tune, CP5. Measurements sensitive to underlying-event performed at $\sqrt{s}=$1.96, 7, and 13$...
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2021
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Acceso en línea: | http://cds.cern.ch/record/2780467 |
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author | CMS Collaboration |
author_facet | CMS Collaboration |
author_sort | CMS Collaboration |
collection | CERN |
description | New sets of parameter tunes for two of the colour reconnection models implemented in the PYTHIA8 event generator, QCD-inspired and gluon move, are obtained based on the default CMS PYTHIA8 underlying-event tune, CP5. Measurements sensitive to underlying-event performed at $\sqrt{s}=$1.96, 7, and 13$~\mathrm{TeV}$ are used to constrain the parameters of the colour reconnection models and the multiple parton interactions simultaneously. The new colour reconnection tunes are compared to various measurements at a centre-of-mass energy of 1.96, 7, 8, and 13$~\mathrm{TeV}$ including measurements of underlying event, strange particle multiplicities, jet substructure observables, hadron ratios, jet shapes and colour flow in top quark pair events, and top quark mass. The new colour reconnection tunes can be used to estimate systematic uncertainties related to colour reconnection modelling. |
id | cern-2780467 |
institution | Organización Europea para la Investigación Nuclear |
publishDate | 2021 |
record_format | invenio |
spelling | cern-27804672022-05-06T11:41:15Zhttp://cds.cern.ch/record/2780467CMS CollaborationA new set of CMS tunes for novel colour reconnection models in PYTHIA8 based on underlying-event dataParticle Physics - ExperimentNew sets of parameter tunes for two of the colour reconnection models implemented in the PYTHIA8 event generator, QCD-inspired and gluon move, are obtained based on the default CMS PYTHIA8 underlying-event tune, CP5. Measurements sensitive to underlying-event performed at $\sqrt{s}=$1.96, 7, and 13$~\mathrm{TeV}$ are used to constrain the parameters of the colour reconnection models and the multiple parton interactions simultaneously. The new colour reconnection tunes are compared to various measurements at a centre-of-mass energy of 1.96, 7, 8, and 13$~\mathrm{TeV}$ including measurements of underlying event, strange particle multiplicities, jet substructure observables, hadron ratios, jet shapes and colour flow in top quark pair events, and top quark mass. The new colour reconnection tunes can be used to estimate systematic uncertainties related to colour reconnection modelling.CMS-PAS-GEN-17-002oai:cds.cern.ch:27804672021 |
spellingShingle | Particle Physics - Experiment CMS Collaboration A new set of CMS tunes for novel colour reconnection models in PYTHIA8 based on underlying-event data |
title | A new set of CMS tunes for novel colour reconnection models in PYTHIA8 based on underlying-event data |
title_full | A new set of CMS tunes for novel colour reconnection models in PYTHIA8 based on underlying-event data |
title_fullStr | A new set of CMS tunes for novel colour reconnection models in PYTHIA8 based on underlying-event data |
title_full_unstemmed | A new set of CMS tunes for novel colour reconnection models in PYTHIA8 based on underlying-event data |
title_short | A new set of CMS tunes for novel colour reconnection models in PYTHIA8 based on underlying-event data |
title_sort | new set of cms tunes for novel colour reconnection models in pythia8 based on underlying-event data |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/2780467 |
work_keys_str_mv | AT cmscollaboration anewsetofcmstunesfornovelcolourreconnectionmodelsinpythia8basedonunderlyingeventdata AT cmscollaboration newsetofcmstunesfornovelcolourreconnectionmodelsinpythia8basedonunderlyingeventdata |