Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector

Measurements of the jet activity in tt events produced in proton-proton collisions at √s = 8TeV are presented, using 20.3 fb<sup>-1</sup> of data collected by the ATLAS experiment at the Large Hadron Collider. The events were selected in the dilepton eμ decay channel with two identi ed b...

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Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ciencias Exactas
Física
hadron-hadron scattering
la̵rge hadron collider
top quark
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/81687
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-81687
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
hadron-hadron scattering
la̵rge hadron collider
top quark
spellingShingle Ciencias Exactas
Física
hadron-hadron scattering
la̵rge hadron collider
top quark
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
hadron-hadron scattering
la̵rge hadron collider
top quark
description Measurements of the jet activity in tt events produced in proton-proton collisions at √s = 8TeV are presented, using 20.3 fb<sup>-1</sup> of data collected by the ATLAS experiment at the Large Hadron Collider. The events were selected in the dilepton eμ decay channel with two identi ed b-jets. The numbers of additional jets for various jet transverse momentum (p<sub>T</sub>) thresholds, and the normalised differential cross-sections as a function of p<sub>T</sub> for the ve highest-p<sub>T</sub> additional jets, were measured in the jet pseudorapidity range |η| < 4.5. The gap fraction, the fraction of events which do not contain an additional jet in a central rapidity region, was measured for several rapidity intervals as a function of the minimum p<sub>T</sub> of a single jet or the scalar sum of p<sub>T</sub> of all additional jets. These fractions were also measured in different intervals of the invariant mass of the eμbb system. All measurements were corrected for detector effects, and found to be mostly well-described by predictions from next-to-leading-order and leading-order tt event generators with appropriate parameter choices. The results can be used to further optimise the parameters used in such generators.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
title_short Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
title_full Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
title_fullStr Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
title_full_unstemmed Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
title_sort measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 tev with the atlas detector
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/81687
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