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

European Organization for Nuclear Research
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National Technical University of Athens
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Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

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.

langue originale	Anglais
Numéro d'article	2211
journal	European Physical Journal C
Volume	72
Numéro de publication	11
Les DOIs	https://doi.org/10.1140/epjc/s10052-012-2211-y
état	Publié - 20 nov. 2012
Modification externe	Oui

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10.1140/epjc/s10052-012-2211-y

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@article{5897c9aa48cd43bda05fd41c36deed80,

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 Sauvan, \{J. B.\} and O. Simard",

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 - Sauvan, J. B.

AU - Simard, O.

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

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