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

G. Aad; B. Abbott; Mogens Dam; Jørgen Beck Hansen; Peter Henrik Hansen; John Renner Hansen; Jørn Dines Hansen; Simon Johann Franz Heisterkamp; Morten Dam Jørgensen; Ask Emil Løvschall-Jensen; Sascha Mehlhase; Esben Bryndt Klinkby; Nele Maria Philomena Boelaert; Björn Stefan Nilsson; Troels Christian Petersen; Stefania Xella

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

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

G. Aad, B. Abbott, Mogens Dam, Jørgen Beck Hansen, Peter Henrik Hansen, John Renner Hansen, Jørn Dines Hansen, Simon Johann Franz Heisterkamp, Morten Dam Jørgensen, Ask Emil Løvschall-Jensen, Sascha Mehlhase, Esben Bryndt Klinkby, Nele Maria Philomena Boelaert, Björn Stefan Nilsson, Troels Christian Petersen, Stefania Xella

Experimental Particle Physics

30 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
Journal	European Physical Journal C
Volume	72
Issue number	11
Pages (from-to)	2211
ISSN	1434-6044
DOIs	https://doi.org/10.1140/epjc/s10052-012-2211-y
Publication status	Published - 20 Nov 2012

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Aad, G., Abbott, B., Dam, M., Hansen, J. B., Hansen, P. H., Hansen, J. R., Hansen, J. D., Heisterkamp, S. J. F., Jørgensen, M. D., Løvschall-Jensen, A. E., Mehlhase, S., Klinkby, E. B., Boelaert, N. M. P., Nilsson, B. S., Petersen, T. C., & Xella, S. (2012). Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at root s=7 TeV. European Physical Journal C, 72(11), 2211. https://doi.org/10.1140/epjc/s10052-012-2211-y

Aad, G, Abbott, B, Dam, M , Hansen, JB , Hansen, PH , Hansen, JR , Hansen, JD, Heisterkamp, SJF, Jørgensen, MD, Løvschall-Jensen, AE, Mehlhase, S, Klinkby, EB, Boelaert, NMP, Nilsson, BS, Petersen, TC & Xella, S 2012, 'Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at root s=7 TeV', European Physical Journal C, vol. 72, no. 11, pp. 2211. https://doi.org/10.1140/epjc/s10052-012-2211-y

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title = "Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at root 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 = "G. Aad and B. Abbott and Mogens Dam and Hansen, {J{\o}rgen Beck} and Hansen, {Peter Henrik} and Hansen, {John Renner} and Hansen, {J{\o}rn Dines} and Heisterkamp, {Simon Johann Franz} and J{\o}rgensen, {Morten Dam} and L{\o}vschall-Jensen, {Ask Emil} and Sascha Mehlhase and Klinkby, {Esben Bryndt} and Boelaert, {Nele Maria Philomena} and Nilsson, {Bj{\"o}rn Stefan} and Petersen, {Troels Christian} and Stefania Xella",

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

AU - Aad, G.

AU - Abbott, B.

AU - Dam, Mogens

AU - Hansen, Jørgen Beck

AU - Hansen, Peter Henrik

AU - Hansen, John Renner

AU - Hansen, Jørn Dines

AU - Heisterkamp, Simon Johann Franz

AU - Jørgensen, Morten Dam

AU - Løvschall-Jensen, Ask Emil

AU - Mehlhase, Sascha

AU - Klinkby, Esben Bryndt

AU - Boelaert, Nele Maria Philomena

AU - Nilsson, Björn Stefan

AU - Petersen, Troels Christian

AU - Xella, Stefania

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.

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

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

M3 - Journal article

SN - 1434-6044

VL - 72

SP - 2211

JO - The European Physical Journal C: Particles and Fields

JF - The European Physical Journal C: Particles and Fields

IS - 11

ER -

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

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