Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV

The ATLAS collaboration

doi:10.1140/epjc/s10052-012-2211-y

Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV

The ATLAS collaboration

CERN
University of Freiburg
University of Oklahoma
Institute for High Energy Physics
Université Paris-Sud
University of Geneva
Baku State University
Oklahoma State University
Michigan State University
University of Toronto
Tel Aviv University
CEA Saclay (Commissariat À l'Energie Atomique et Aux Energies Alternatives)
National Institute for Nuclear Physics
Heidelberg University
NFN Gruppo Collegato di Udine
Oskar Klein Centre
AGH University of Krakow
United States Department of Energy
Hampton University
University of Würzburg
Ludwig Maximilian University of Munich
Queen Mary University of London
Rutherford Appleton Laboratory
Brandeis University
A. Alikhanian Yerevan Institute of Physics
University of Pavia
University of Bern
Johannes Gutenberg University Mainz
Boston University
Stony Brook University
University of Texas at Dallas
University of Granada
Bogazici University
Lund University
The University of Tokyo
RAS - P.N. Lebedev Physics Institute
SUNY Albany
Royal Holloway University of London
Université Grenoble Alpes
Joint Institute for Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Technical University of Athens
York University Toronto
Humboldt University of Berlin
University of Pennsylvania
University of Birmingham
University of Glasgow

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

43 Citations (Scopus)

Abstract

A measurement of event shape variables is presented for large momentum transfer proton-proton collisions using the ATLAS detector at the Large Hadron Collider. Six event shape variables calculated using hadronic jets are studied in inclusive multi-jet events in 35 pb^-1 of integrated luminosity at a center-of-mass energy of √s = 7 TeV. These measurements are compared to predictions by three Monte Carlo event generators containing leading-logarithmic parton showers matched to leading order matrix elements for 2→2 and 2→n (n = 2, …, 6) scattering. Measurements of the third-jet resolution parameter, aplanarity, thrust, sphericity, and transverse sphericity are generally well described. The mean value of each event shape variable is evaluated as a function of the average momentum of the two leading jets p_T,1 and p_T,2, with a mean pT approaching 1 TeV.

Original language	English
Article number	2211
Journal	European Physical Journal C
Volume	72
Issue number	11
DOIs	https://doi.org/10.1140/epjc/s10052-012-2211-y
Publication status	Published - 20 Nov 2012
Externally published	Yes

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10.1140/epjc/s10052-012-2211-y

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@article{c16df3eb054b4f2ca328e00e0a455c4a,

title = "Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV",

abstract = "A measurement of event shape variables is presented for large momentum transfer proton-proton collisions using the ATLAS detector at the Large Hadron Collider. Six event shape variables calculated using hadronic jets are studied in inclusive multi-jet events in 35 pb-1 of integrated luminosity at a center-of-mass energy of √s = 7 TeV. These measurements are compared to predictions by three Monte Carlo event generators containing leading-logarithmic parton showers matched to leading order matrix elements for 2→2 and 2→n (n = 2, …, 6) scattering. Measurements of the third-jet resolution parameter, aplanarity, thrust, sphericity, and transverse sphericity are generally well described. The mean value of each event shape variable is evaluated as a function of the average momentum of the two leading jets pT,1 and pT,2, with a mean pT approaching 1 TeV.",

author = "\{The ATLAS collaboration\} and G. Aad and B. Abbott and J. Abdallah and Khalek, \{S. Abdel\} and Abdelalim, \{A. A.\} and O. Abdinov and B. Abi and M. Abolins and Zeid, \{O. S.Abou\} and H. Abramowicz and H. Abreu and E. Acerbi and Acharya, \{B. S.\} and L. Adamczyk and Adams, \{D. L.\} and Addy, \{T. N.\} and J. Adelman and S. Adomeit and P. Adragna and T. Adye and S. Aefsky and Aguilar-Saavedra, \{J. A.\} and M. Agustoni and M. Aharrouche and Ahlen, \{S. P.\} and F. Ahles and A. Ahmad and M. Ahsan and G. Aielli and T. Akdogan and {\AA}kesson, \{T. P.A.\} and G. Akimoto and Akimov, \{A. V.\} and Alam, \{M. S.\} and Alam, \{M. A.\} and J. Albert and S. Albrand and M. Aleksa and Aleksandrov, \{I. N.\} and F. Alessandria and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and M. Aliev and G. Alimonti and J. Alison and Allbrooke, \{B. M.M.\} and A. Moraes",

note = "Publisher Copyright: {\textcopyright} 2012, CERN for the benefit of the ATLAS collaboration.",

year = "2012",

month = nov,

day = "20",

doi = "10.1140/epjc/s10052-012-2211-y",

language = "English",

volume = "72",

journal = "European Physical Journal C",

issn = "1434-6044",

number = "11",

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TY - JOUR

T1 - Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV

AU - The ATLAS collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Khalek, S. Abdel

AU - Abdelalim, A. A.

AU - Abdinov, O.

AU - Abi, B.

AU - Abolins, M.

AU - Zeid, O. S.Abou

AU - Abramowicz, H.

AU - Abreu, H.

AU - Acerbi, E.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Addy, T. N.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adragna, P.

AU - Adye, T.

AU - Aefsky, S.

AU - Aguilar-Saavedra, J. A.

AU - Agustoni, M.

AU - Aharrouche, M.

AU - Ahlen, S. P.

AU - Ahles, F.

AU - Ahmad, A.

AU - Ahsan, M.

AU - Aielli, G.

AU - Akdogan, T.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Alam, M. S.

AU - Alam, M. A.

AU - Albert, J.

AU - Albrand, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alessandria, F.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexandre, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Aliev, M.

AU - Alimonti, G.

AU - Alison, J.

AU - Allbrooke, B. M.M.

AU - Moraes, A.

PY - 2012/11/20

Y1 - 2012/11/20

N2 - A measurement of event shape variables is presented for large momentum transfer proton-proton collisions using the ATLAS detector at the Large Hadron Collider. Six event shape variables calculated using hadronic jets are studied in inclusive multi-jet events in 35 pb-1 of integrated luminosity at a center-of-mass energy of √s = 7 TeV. These measurements are compared to predictions by three Monte Carlo event generators containing leading-logarithmic parton showers matched to leading order matrix elements for 2→2 and 2→n (n = 2, …, 6) scattering. Measurements of the third-jet resolution parameter, aplanarity, thrust, sphericity, and transverse sphericity are generally well described. The mean value of each event shape variable is evaluated as a function of the average momentum of the two leading jets pT,1 and pT,2, with a mean pT approaching 1 TeV.

AB - A measurement of event shape variables is presented for large momentum transfer proton-proton collisions using the ATLAS detector at the Large Hadron Collider. Six event shape variables calculated using hadronic jets are studied in inclusive multi-jet events in 35 pb-1 of integrated luminosity at a center-of-mass energy of √s = 7 TeV. These measurements are compared to predictions by three Monte Carlo event generators containing leading-logarithmic parton showers matched to leading order matrix elements for 2→2 and 2→n (n = 2, …, 6) scattering. Measurements of the third-jet resolution parameter, aplanarity, thrust, sphericity, and transverse sphericity are generally well described. The mean value of each event shape variable is evaluated as a function of the average momentum of the two leading jets pT,1 and pT,2, with a mean pT approaching 1 TeV.

UR - https://www.scopus.com/pages/publications/84871238559

U2 - 10.1140/epjc/s10052-012-2211-y

DO - 10.1140/epjc/s10052-012-2211-y

M3 - Article

AN - SCOPUS:84871238559

SN - 1434-6044

VL - 72

JO - European Physical Journal C

JF - European Physical Journal C

IS - 11

M1 - 2211

ER -

Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV

Abstract

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