Measurement of colour flow using jet-pull observables in tt¯ events with the ATLAS experiment at √s=13TeV

Previous studies have shown that weighted angular moments derived from jet constituents encode the colour connections between partons that seed the jets. This paper presents measurements of two such distributions, the jet-pull angle and jet-pull magnitude, both of which are derived from the jet-pull...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Física
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/106542
http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC6405042&blobtype=pdf
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-106542
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
spellingShingle Física
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Measurement of colour flow using jet-pull observables in tt¯ events with the ATLAS experiment at √s=13TeV
topic_facet Física
description Previous studies have shown that weighted angular moments derived from jet constituents encode the colour connections between partons that seed the jets. This paper presents measurements of two such distributions, the jet-pull angle and jet-pull magnitude, both of which are derived from the jet-pull angular moment. The measurement is performed in tt ¯ events with one leptonically decaying W boson and one hadronically decaying W boson, using 36.1 fb−1 of pp collision data recorded by the ATLAS detector at √s = 13 TeV delivered by the Large Hadron Collider. The observables are measured for two dijet systems, corresponding to the colourconnected daughters of the W boson and the two b-jets from the top-quark decays, which are not expected to be colour connected. To allow the comparison of the measured distributions to colour model predictions, the measured distributions are unfolded to particle level, after correcting for experimental effects introduced by the detector. While good agreement can be found for some combinations of predictions and observables, none of the predictions describes the data well across all observables.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Measurement of colour flow using jet-pull observables in tt¯ events with the ATLAS experiment at √s=13TeV
title_short Measurement of colour flow using jet-pull observables in tt¯ events with the ATLAS experiment at √s=13TeV
title_full Measurement of colour flow using jet-pull observables in tt¯ events with the ATLAS experiment at √s=13TeV
title_fullStr Measurement of colour flow using jet-pull observables in tt¯ events with the ATLAS experiment at √s=13TeV
title_full_unstemmed Measurement of colour flow using jet-pull observables in tt¯ events with the ATLAS experiment at √s=13TeV
title_sort measurement of colour flow using jet-pull observables in tt¯ events with the atlas experiment at √s=13tev
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/106542
http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC6405042&blobtype=pdf
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