Jet energy measurement with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV
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Jet energy measurement with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV

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Jet energy measurement with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV

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dc.contributor.author ATLAS Collaboration
dc.contributor.author Amorós Vicente, Gabriel
dc.contributor.author Cabrera Urbán, Susana
dc.contributor.author Castillo Giménez, María Victoria
dc.contributor.author Costa Mezquita, María José
dc.contributor.author Escobar Ibañez, Carlos
dc.contributor.author Ferrer Soria, Antonio
dc.contributor.author Fiorini, Luca
dc.contributor.author Fuster Verdú, Juan A.
dc.contributor.author García García, Carmen
dc.contributor.author González de la Hoz, Santiago
dc.contributor.author Hernández Jiménez, Yesenia
dc.contributor.author Higón Rodríguez, Emilio
dc.contributor.author Irles Quiles, Adrián
dc.contributor.author Kaci, Mohammed
dc.contributor.author Lacasta Llácer, Carlos
dc.contributor.author Lacuesta Miquel, Vicente
dc.contributor.author Martí García, Salvador
dc.contributor.author Miñano Moya, Mercedes
dc.contributor.author Mitsou, Vasiliki
dc.contributor.author Moles Valls, Regina
dc.contributor.author Moreno Llácer, María
dc.contributor.author Oliver García, Elena
dc.contributor.author Pérez García-Estañ, María Teresa
dc.contributor.author Ros Martínez, Eduardo
dc.contributor.author Salt Cairols, José
dc.contributor.author Solans Sánchez, Carlos Antonio
dc.contributor.author Soldevila, U.
dc.contributor.author Sánchez Martínez, Javier
dc.contributor.author Torró Pastor, Emma
dc.contributor.author Valladolid Gallego, E.
dc.contributor.author Valls Ferrer, Juan Antonio
dc.contributor.author Villaplana Pérez, Miguel
dc.contributor.author Vos, Marcel
dc.contributor.author Wildauer, A.
dc.date.accessioned 2014-09-18T09:04:54Z
dc.date.available 2014-09-18T09:04:54Z
dc.date.issued 2013
dc.identifier.uri http://hdl.handle.net/10550/37988
dc.description.abstract The jet energy scale (JES) and its systematic uncertainty are determined for jets measured with the ATLAS detector at the LHC in proton-proton collision data at a centre-of-mass energy of sqrt(s) = 7 TeV corresponding to an integrated luminosity of 38 inverse pb. Jets are reconstructed with the anti-kt algorithm with distance parameters R=0.4 or R=0.6. Jet energy and angle corrections are determined from Monte Carlo simulations to calibrate jets with transverse momenta pt > 20 GeV and pseudorapidities eta<4.5. The JES systematic uncertainty is estimated using the single isolated hadron response measured in situ and in test-beams. The JES uncertainty is less than 2.5% in the central calorimeter region (eta<0.8) for jets with 60 < pt < 800 GeV, and is maximally 14% for pt < 30 GeV in the most forward region 3.2<eta<4.5. The uncertainty for additional energy from multiple proton-proton collisions in the same bunch crossing is less than 1.5% per additional collision for jets with pt > 50 GeV after a dedicated correction for this effect. The JES is validated for jet transverse momenta up to 1 TeV to the level of a few percent using several in situ techniques by comparing a well-known reference such as the recoiling photon pt, the sum of the transverse momenta of tracks associated to the jet, or a system of low-pt jets recoiling against a high-pt jet. More sophisticated jet calibration schemes are presented based on calorimeter cell energy density weighting or hadronic properties of jets, providing an improved jet energy resolution and a reduced flavour dependence of the jet response. The JES systematic uncertainty determined from a combination of in situ techniques are consistent with the one derived from single hadron response measurements over a wide kinematic range. The nominal corrections and uncertainties are derived for isolated jets in an inclusive sample of high-pt jets.
dc.language.iso eng
dc.relation.ispartof European Physical Journal C, 2013, vol. 73, num. 3, p. 2304-1-2304-118
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source ATLAS Collaboration Amorós Vicente, Gabriel Cabrera Urbán, Susana Castillo Giménez, María Victoria Costa Mezquita, María José Escobar Ibañez, Carlos Ferrer Soria, Antonio Fiorini, Luca Fuster Verdú, Juan A. García García, Carmen González de la Hoz, Santiago Hernández Jiménez, Yesenia Higón Rodríguez, Emilio Irles Quiles, Adrián Kaci, Mohammed Lacasta Llácer, Carlos Lacuesta Miquel, Vicente Martí García, Salvador Miñano, M. Mitsou, Vasiliki Moles Valls, Regina Moreno Llácer, María Oliver García, Elena Pérez García-Estañ, María Teresa Ros Martínez, Eduardo Salt Cairols, José Solans Sánchez, Carlos Antonio Soldevila, U. Sánchez, J. Torró Pastor, Emma Valladolid Gallego, E. Valls Ferrer, Juan Antonio Villaplana Pérez, Miguel Vos, Marcel Wildauer, A. 2013 Jet energy measurement with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV European Physical Journal C 73 3 2304-1 2304-118
dc.subject Física nuclear
dc.title Jet energy measurement with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-09-18T09:04:54Z
dc.identifier.doi http://dx.doi.org/10.1140/epjc/s10052-013-2304-2
dc.identifier.idgrec 084817

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