Determination of jet calibration and energy resolution in proton-proton collisions at <i>√s</i> = 8 TeV using the ATLAS detector

Article Article scientifique Article Determination of jet calibration and energy resolution in proton-proton collisions at <i>√s</i> = 8 TeV using the ATLAS detector eng 2020-12-01 2020 ATLAS Collaboration collaborator Akilli Ece Geneva U. 809000 collaborator Amrouche Cherifa Sabrina Sheffield U. 858063 collaborator Ancu Lucian Stefan Geneva U. 815330 collaborator Benoit Mathieu Geneva U. 829315 collaborator Calace Noemi Geneva U. 817503 collaborator Clark Allan Geoffrey Geneva U. 24043 Département de physique nucléaire et corpusculaire (FINUC) collaborator Della Volpe Domenico Geneva U. 792615 Département de physique nucléaire et corpusculaire (FINUC) collaborator Di Bello Francesco Armando Geneva U. 845027 collaborator Dubreuil Arnaud Geneva U. 828412 collaborator Fawcett William Geneva U. 885791 collaborator Ferrere Didier Geneva U. 507742 Département de physique nucléaire et corpusculaire (FINUC) collaborator Gadatsch Stefan Geneva U. 885349 collaborator Gadomski Michal Szymon Geneva U. 835799 collaborator Golling Tobias Geneva U. 827102 Département de physique nucléaire et corpusculaire (FINUC) collaborator Gonzalez Sevilla Sergio Geneva U. 680902 Département de physique nucléaire et corpusculaire (FINUC) collaborator Iacobucci Giuseppe Geneva U. 752364 Département de physique nucléaire et corpusculaire (FINUC) collaborator Jansky Roland Geneva U. 867921 collaborator Katre Akshay Geneva U. 766634 collaborator Khoo Teng Jian Geneva U. 847649 collaborator Kiehn Moritz Geneva U. 856072 collaborator Lanfermann Marie Christine Geneva U. 831240 collaborator Lionti Anthony Eric Geneva U. 827445 collaborator March Ruiz Luis Geneva U. 846347 collaborator Mermod Philippe Geneva U. 507298 collaborator Nessi Marzio 709747 collaborator Pandini Carlo Geneva U. 875659 collaborator Paolozzi Lorenzo Geneva U. 831519 Services communs de la section de physique (FICO) collaborator Salamani Dalila Geneva U. 858461 collaborator Schramm Steven Geneva U. 830747 Département de physique nucléaire et corpusculaire (FINUC) collaborator Sfyrla Anna Geneva U. 584693 Département de physique nucléaire et corpusculaire (FINUC) collaborator Sultan D M S Geneva U. 877938 collaborator Valente Marco Geneva U. 848695 collaborator Wu Xin Geneva U. 27612 Département de physique nucléaire et corpusculaire (FINUC) 1104 10.1140/epjc/s10052-020-08477-8 1434-6044 1910.04482 http://link.springer.com/10.1140/epjc/s10052-020-08477-8 The jet energy scale, jet energy resolution, and their systematic uncertainties are measured for jets reconstructed with the ATLAS detector in 2012 using proton–proton data produced at a centre-of-mass energy of 8 TeV with an integrated luminosity of $20 \, \hbox {fb}^{-1}$. Jets are reconstructed from clusters of energy depositions in the ATLAS calorimeters using the anti-$k_t$ algorithm. A jet calibration scheme is applied in multiple steps, each addressing specific effects including mitigation of contributions from additional proton–proton collisions, loss of energy in dead material, calorimeter non-compensation, angular biases and other global jet effects. The final calibration step uses several in situ techniques and corrects for residual effects not captured by the initial calibration. These analyses measure both the jet energy scale and resolution by exploiting the transverse momentum balance in $\gamma $ + jet, Z + jet, dijet, and multijet events. A statistical combination of these measurements is performed. In the central detector region, the derived calibration has a precision better than 1% for jets with transverse momentum $150 \, \hbox {GeV} < p_{{\mathrm {T}}}<$ 1500 GeV, and the relative energy resolution is $(8.4\pm 0.6)\%$ for $p_{{\mathrm {T}}}= 100 \, \hbox {GeV}$ and $(23\pm 2)\%$ for $p_{{\mathrm {T}}}= 20 \, \hbox {GeV}$. The calibration scheme for jets with radius parameter $R=1.0$, for which jets receive a dedicated calibration of the jet mass, is also discussed. P p: colliding beams Jet: calibration P p: scattering Jet: energy resolution Jet: multiple production Photon: associated production Z0: associated production Jet: mass ATLAS CERN LHC Coll Transverse momentum: missing-energy Calorimeter Track data analysis: jet Anti-kT algorithm Statistical Resolution Cluster Dijet Data analysis method Experimental results 8000 GeV-cms Dewey 520 Dewey 500.2 34 Département de physique nucléaire et corpusculaire 132 26 Département d'astronomie 12 false European physical journal. C, Particles and fields 80 12 b7b58117-9836-4bab-b2f5-cb9498c63bda Article (Published version) Public Article_scientifique_from_unpaywall.pdf 10421265 application/pdf CC BY-4.0 0f3a97f53bc7e8ad507fd07e1f9698275a56f365b46c0e962457a3928b49a510 openAccess Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire Faculté des sciences / Département d'astronomie

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Determination of jet calibration and energy resolution in proton-proton collisions at √s = 8 TeV using the ATLAS detector	European physical journal. C, Particles and fields	2020	45	13

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Gadomski, Michal Szymon

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