TY - JOUR
T1 - Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at √s =7 TeV
AU - Aad, G.
AU - Abbott, B.
AU - Abdallah, J.
AU - Khalek, S. Abdel
AU - Kabana, S.
AU - ATLAS Collaboration
N1 - Publisher Copyright:
© 2012, CERN for the benefit of the ATLAS collaboration.
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 -