Measurements of normalized differential cross sections for t ̄t production in pp collisions at √(s) = 7 TeV using the ATLAS detector

ATLAS Collaboration

doi:10.1103/PhysRevD.90.072004

Measurements of normalized differential cross sections for t ̄t production in pp collisions at √(s) = 7 TeV using the ATLAS detector

ATLAS Collaboration

Aix-Marseille Université
Physikalisches Institut
University Bonn
Homer L. Dodge Department of Physics and Astronomy
University of Oklahoma
Academia Sinica, Institute Of Physics
Laboratoire de l'Accélérateur Linéaire
Azerbaijan Academy of Sciences
University of Amsterdam
Department of Physics
Oklahoma State University
Department of Physics and Astronomy
Michigan State University
Department of Physics
University of Toronto
Raymond and Beverly Sackler School of Physics and Astronomy
Tel Aviv University
Universite Paris-Saclay
Department of Physics
Stockholm University
Oskar Klein Centre
INFN Gruppo Collegato di Udine
INFN Sezione di Trieste
Abdus Salam International Centre for Theoretical Physics
King's College London
Faculty of Physics and Applied Computer Science
Agh University of Science and Technology Faculty of Computer Science
Physics Department
Brookhaven National Laboratory
Yale University
Fakultät für Physik
Universität München
Rutherford Appleton Laboratory
University of Belgrade
Lisboa
Departamento de Fisica Teorica y del Cosmos
University of Granada
Albert Einstein Center for Fundamental Physics
University of Bern
Boston University
Joint Institute for Nuclear Research, Dubna
INFN Roma Tor Vergata
Dipartimento di Fisica
University of Rome “Tor Vergata”
Lund University
Department of Physics
University of Tokyo
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Department of Physics and Astronomy
University of Victoria
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
Instituto de Física La Plata
European Organization for Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
Section de Physique
University of Geneva
Physics Department
National Technical University of Athens
Dipartimento di Chimica
and Physics University of Udine
Sezione INFN di Milano
University of Chicago
School of Physics and Astronomy
University of Birmingham
Lancaster University
Oliver Lodge Laboratory
University of Liverpool
SUPA School of Physics and Astronomy
University of Glasgow
School of Physics and Astronomy
University of Manchester
Universités Paris VI and VII
University of Cambridge
Université Savoie Mont Blanc

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

107 Citations (Scopus)

Abstract

Measurements of normalized differential cross sections for top-quark pair production are presented as a function of the top-quark transverse momentum, and of the mass, transverse momentum, and rapidity of the t¯t system, in proton-proton collisions at a center-of-mass energy of √s = 7 TeV. The data set corresponds to an integrated luminosity of 4.6 fb^-1, recorded in 2011 with the ATLAS detector at the CERN Large Hadron Collider. Events are selected in the lepton + jets channel, requiring exactly one lepton and at least four jets with at least one of the jets tagged as originating from a b-quark. The measured spectra are corrected for detector efficiency and resolution effects and are compared to several Monte Carlo simulations and theory calculations. The results are in fair agreement with the predictions in a wide kinematic range. Nevertheless, data distributions are softer than predicted for higher values of the mass of the t¯t system and of the top-quark transverse momentum. The measurements can also discriminate among different sets of parton distribution functions.

Original language	English
Article number	072004
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	90
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.90.072004
Publication status	Published - 13 Oct 2014
Externally published	Yes

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10.1103/PhysRevD.90.072004

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@article{b2b0aaed7f4a42ddb4bd573c5050293b,

title = "Measurements of normalized differential cross sections for t{\= }t production in pp collisions at √(s) = 7 TeV using the ATLAS detector",

abstract = "Measurements of normalized differential cross sections for top-quark pair production are presented as a function of the top-quark transverse momentum, and of the mass, transverse momentum, and rapidity of the t¯t system, in proton-proton collisions at a center-of-mass energy of √s = 7 TeV. The data set corresponds to an integrated luminosity of 4.6 fb-1, recorded in 2011 with the ATLAS detector at the CERN Large Hadron Collider. Events are selected in the lepton + jets channel, requiring exactly one lepton and at least four jets with at least one of the jets tagged as originating from a b-quark. The measured spectra are corrected for detector efficiency and resolution effects and are compared to several Monte Carlo simulations and theory calculations. The results are in fair agreement with the predictions in a wide kinematic range. Nevertheless, data distributions are softer than predicted for higher values of the mass of the t¯t system and of the top-quark transverse momentum. The measurements can also discriminate among different sets of parton distribution functions.",

author = "\{ATLAS Collaboration\} and G. Aad and T. Abajyan and B. Abbott and J. Abdallah and \{Abdel Khalek\}, S. and O. Abdinov and R. Aben and B. Abi and M. Abolins and AbouZeid, \{O. S.\} and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and L. Adamczyk and Adams, \{D. L.\} and J. Adelman and S. Adomeit and T. Adye and T. Agatonovic-Jovin and Aguilar-Saavedra, \{J. A.\} and M. Agustoni and Ahlen, \{S. P.\} and F. Ahmadov and G. Aielli and {\AA}kesson, \{T. P.A.\} and G. Akimoto and Akimov, \{A. V.\} and J. Albert and S. Albrand and \{Alconada Verzini\}, \{M. J.\} and M. Aleksa and Aleksandrov, \{I. N.\} and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and G. Alimonti and L. Alio and J. Alison and Allbrooke, \{B. M.M.\} and Allison, \{L. J.\} and Allport, \{P. P.\} and Allwood-Spiers, \{S. E.\} and J. Almond and O. Davignon and \{De La Taille\}, C. and T. Mueller and O. Simard",

note = "Publisher Copyright: {\textcopyright} Published by the American Physical Society.",

year = "2014",

month = oct,

day = "13",

doi = "10.1103/PhysRevD.90.072004",

language = "English",

volume = "90",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "7",

}

TY - JOUR

T1 - Measurements of normalized differential cross sections for t ̄t production in pp collisions at √(s) = 7 TeV using the ATLAS detector

AU - ATLAS Collaboration

AU - Aad, G.

AU - Abajyan, T.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdel Khalek, S.

AU - Abdinov, O.

AU - Aben, R.

AU - Abi, B.

AU - Abolins, M.

AU - AbouZeid, O. S.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adye, T.

AU - Agatonovic-Jovin, T.

AU - Aguilar-Saavedra, J. A.

AU - Agustoni, M.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Albert, J.

AU - Albrand, S.

AU - Alconada Verzini, M. J.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexandre, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Alimonti, G.

AU - Alio, L.

AU - Alison, J.

AU - Allbrooke, B. M.M.

AU - Allison, L. J.

AU - Allport, P. P.

AU - Allwood-Spiers, S. E.

AU - Almond, J.

AU - Davignon, O.

AU - De La Taille, C.

AU - Mueller, T.

AU - Simard, O.

PY - 2014/10/13

Y1 - 2014/10/13

N2 - Measurements of normalized differential cross sections for top-quark pair production are presented as a function of the top-quark transverse momentum, and of the mass, transverse momentum, and rapidity of the t¯t system, in proton-proton collisions at a center-of-mass energy of √s = 7 TeV. The data set corresponds to an integrated luminosity of 4.6 fb-1, recorded in 2011 with the ATLAS detector at the CERN Large Hadron Collider. Events are selected in the lepton + jets channel, requiring exactly one lepton and at least four jets with at least one of the jets tagged as originating from a b-quark. The measured spectra are corrected for detector efficiency and resolution effects and are compared to several Monte Carlo simulations and theory calculations. The results are in fair agreement with the predictions in a wide kinematic range. Nevertheless, data distributions are softer than predicted for higher values of the mass of the t¯t system and of the top-quark transverse momentum. The measurements can also discriminate among different sets of parton distribution functions.

AB - Measurements of normalized differential cross sections for top-quark pair production are presented as a function of the top-quark transverse momentum, and of the mass, transverse momentum, and rapidity of the t¯t system, in proton-proton collisions at a center-of-mass energy of √s = 7 TeV. The data set corresponds to an integrated luminosity of 4.6 fb-1, recorded in 2011 with the ATLAS detector at the CERN Large Hadron Collider. Events are selected in the lepton + jets channel, requiring exactly one lepton and at least four jets with at least one of the jets tagged as originating from a b-quark. The measured spectra are corrected for detector efficiency and resolution effects and are compared to several Monte Carlo simulations and theory calculations. The results are in fair agreement with the predictions in a wide kinematic range. Nevertheless, data distributions are softer than predicted for higher values of the mass of the t¯t system and of the top-quark transverse momentum. The measurements can also discriminate among different sets of parton distribution functions.

U2 - 10.1103/PhysRevD.90.072004

DO - 10.1103/PhysRevD.90.072004

M3 - Article

AN - SCOPUS:84940558080

SN - 1550-7998

VL - 90

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 7

M1 - 072004

ER -

Measurements of normalized differential cross sections for t ̄t production in pp collisions at √(s) = 7 TeV using the ATLAS detector

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