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

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Degut a la parada de sistemes pevista a la Universitat de València del 19 al 22 de Gener, Roderic també romadrá fora de servei des del 19 a les 21:00 hores fins al 22 a les 17:00 hores. Disculpeu les molèsties. _______________________________________________________________________________________ Debido a la parada de sistemas prevista en la Universitat de València del 19 al 22 de Enero, Roderic también permanecerá fuera de servicio desde el 19 a las 21:00 hasta el 22 a las 17:00. Disculpen las molestias.

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

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ATLAS Collaboration; Fuster Verdú, Juan A. Perfil; Ferrer Soria, Antonio Perfil; Cabrera Urbán, Susana Perfil; García García, Carmen Perfil; Castillo Giménez, María Victoria Perfil; Higón Rodríguez, Emilio Perfil; Martí García, Salvador; Ros Martínez, Eduardo; González de la Hoz, Santiago Perfil; Salt Cairols, José Perfil; Valls Ferrer, Juan Antonio; Kaci, Mohammed; Hernández Jiménez, Yesenia; Lacasta Llácer, Carlos; Fiorini, Luca; Mitsou, Vasiliki
Aquest document és un/a article, creat/da en: 2012

Este documento está disponible también en : http://dx.doi.org/10.1140/epjc/s10052-012-2211-y
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 root 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 p(T) approaching 1 TeV.

    Mitsou, Vasiliki Fuster Verdú, Juan A. Ferrer Soria, Antonio Cabrera Urbán, Susana García García, Carmen Castillo Jiménez, María Victoria Higón Rodríguez, Emilio Martí García, Salvador Ros Martínez, Eduardo González de la Hoz, Santiago Salt Cairols, José Valls Ferrer, Juan Antonio Kaci, Mohammed Hernández Jiménez, Yesenia Lacasta Llácer, Carlos Fiorini, Luca 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 2211-1 2211-22
http://dx.doi.org/10.1140/epjc/s10052-012-2211-y
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