Measurement of the t¯t production cross-section as a function of jet multiplicity and jet transverse momentum in 7TeV proton-proton collisions with the ATLAS detector

The t¯t production cross-section dependence on jet multiplicity and jet transverse momentum is reported for proton-proton collisions at a centre-of-mass energy of 7TeV in the single-lepton channel. The data were collected with the ATLAS detector at the CERN Large Hadron Collider and comprise the ful...

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Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Exactas
Física
hadron-hadron scattering
quantum chromodynamics
jet
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/81981
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-81981
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
quantum chromodynamics
jet
spellingShingle Ciencias Exactas
Física
hadron-hadron scattering
quantum chromodynamics
jet
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS collaboration
Measurement of the t¯t production cross-section as a function of jet multiplicity and jet transverse momentum in 7TeV proton-proton collisions with the ATLAS detector
topic_facet Ciencias Exactas
Física
hadron-hadron scattering
quantum chromodynamics
jet
description The t¯t production cross-section dependence on jet multiplicity and jet transverse momentum is reported for proton-proton collisions at a centre-of-mass energy of 7TeV in the single-lepton channel. The data were collected with the ATLAS detector at the CERN Large Hadron Collider and comprise the full 2011 data sample corresponding to an integrated luminosity of 4.6 fb−1. Differential cross-sections are presented as a function of the jet multiplicity for up to eight jets using jet transverse momentum thresholds of 25, 40, 60, and 80GeV, and as a function of jet transverse momentum up to the fifth jet. The results are shown after background subtraction and corrections for all known detector effects, within a kinematic range closely matched to the experimental acceptance. Several QCD-based Monte Carlo models are compared with the results. Sensitivity to the parton shower modelling is found at the higher jet multiplicities, at high transverse momentum of the leading jet and in the transverse momentum spectrum of the fifth leading jet. The MC@NLO+HERWIG MC is found to predict too few events at higher jet multiplicities.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS collaboration
author_sort Alconada Verzini, María Josefina
title Measurement of the t¯t production cross-section as a function of jet multiplicity and jet transverse momentum in 7TeV proton-proton collisions with the ATLAS detector
title_short Measurement of the t¯t production cross-section as a function of jet multiplicity and jet transverse momentum in 7TeV proton-proton collisions with the ATLAS detector
title_full Measurement of the t¯t production cross-section as a function of jet multiplicity and jet transverse momentum in 7TeV proton-proton collisions with the ATLAS detector
title_fullStr Measurement of the t¯t production cross-section as a function of jet multiplicity and jet transverse momentum in 7TeV proton-proton collisions with the ATLAS detector
title_full_unstemmed Measurement of the t¯t production cross-section as a function of jet multiplicity and jet transverse momentum in 7TeV proton-proton collisions with the ATLAS detector
title_sort measurement of the t¯t production cross-section as a function of jet multiplicity and jet transverse momentum in 7tev proton-proton collisions with the atlas detector
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/81981
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AT dovamariateresa measurementofthettproductioncrosssectionasafunctionofjetmultiplicityandjettransversemomentumin7tevprotonprotoncollisionswiththeatlasdetector
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