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oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/158082026-10-18T20:30:39Zopenairedrivercom_ebyu_10000col_ebyu_10001

Performance of CMS muon reconstruction in pp collision events at √s = 7TeVChatrchyan, S.Khachatryan, V.Sirunyan, A.M.Tumasyan, A.Adam, W.Bergauer, T.Dragicevic, M.Erö, J.Fabjan, C.Friedl, M.Frühwirth, R.Ghete, V.M.Hammer, J.Hoch, M.Hörmann, N.Hrubec, J.Jeitler, M.Kiesenhofer, W.Krammer, M.Liko, D.Mikulec, I.Pernicka, M.Rahbaran, B.Rohringer, C.Rohringer, H.Schöfbeck, R.Strauss, J.Taurok, A.Teischinger, F.Wagner, P.Waltenberger, W.Walzel, G.Widl, E.Wulz, C.-E.Mossolov, V.Shumeiko, N.Suarez Gonzalez, J.Bansal, S.Benucci, L.Cornelis, T.De Wolf, E.A.Janssen, X.Luyckx, S.Maes, T.Mucibello, L.Ochesanu, S.Roland, B.Rougny, R.Selvaggi, M.Van Haevermaet, H.Large detector-systems performanceMuon spectrometersParticle identification methodsParticle tracking detectorsParticle tracking detectors (Gaseous detectors)Performance of High Energy Physics DetectorsSimulation methods and programsCosmologyIntelligent systemsMomentumMonte Carlo methodsTellurium compoundsGaseous detectorsHigh energy physics detectorLarge detectorsMuon spectrometerParticle Identification MethodParticle trackingCharged particlesThe performance of muon reconstruction, identification, and triggering in CMS has been studied using 40pb-1 of data collected in pp collisions at √s = 7 TeV at the LHC in 2010. A few benchmark sets of selection criteria covering a wide range of physics analysis needs have been examined. For all considered selections, the efficiency to reconstruct and identify a muon with a transverse momentum pT larger than a few GeV/c is above 95% over the whole region of pseudorapidity covered by the CMS muon system, |η| < 2.4, while the probability to misidentify a hadron as a muon is well below 1%. The efficiency to trigger on single muons with pT above a few GeV/c is higher than 90% over the full η range, and typically substantially better. The overall momentum scale is measured to a precision of 0.2% with muons from Z decays. The transverse momentum resolution varies from 1% to 6% depending on pseudorapidity for muons with pT below 100GeV/c and, using cosmic rays, it is shown to be better than 10% in the central region up to pT = 1 TeV/c. Observed distributions of all quantities are well reproduced by the Monte Carlo simulation. © CERN 2012 for the benefit of the CMS collaboration, published under the terms of the Creative Commons.Institute of Physics Publishing2012Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/15808https://doi.org/10.1088/1748-0221/7/10/p100021748-0221enJournal of Instrumentationinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/15808