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000222219 0247_ $$2datacite_doi$$a10.3204/DESY-THESIS-2015-034
000222219 037__ $$aPUBDB-2015-03093
000222219 041__ $$aEnglish
000222219 0881_ $$aDESY-THESIS-2015-034
000222219 088__ $$2DESY$$aDESY-THESIS-2015-034
000222219 1001_ $$0P:(DE-H253)PIP1008752$$aSeidel, Markus$$b0$$eCorresponding author$$gmale
000222219 245__ $$aPrecise measurement of the top-quark mass at the CMS experiment using the ideogram method$$f2012-02-01 - 2015-06-23
000222219 260__ $$aHamburg$$bVerlag Deutsches Elektronen-Synchrotron$$c2015
000222219 300__ $$a203
000222219 3367_ $$2DataCite$$aOutput Types/Dissertation
000222219 3367_ $$2ORCID$$aDISSERTATION
000222219 3367_ $$2BibTeX$$aPHDTHESIS
000222219 3367_ $$02$$2EndNote$$aThesis
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000222219 3367_ $$0PUB:(DE-HGF)11$$2PUB:(DE-HGF)$$aDissertation / PhD Thesis$$bphd$$mphd$$s1456912510_12501
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000222219 4900_ $$0PERI:(DE-600)1437131-5$$aDESY-THESIS$$x1435-8085
000222219 502__ $$aUniversität Hamburg, Diss., 2015$$bDr.$$cUniversität Hamburg$$d2015
000222219 520__ $$aThe mass of the top quark is measured using a sample of ttbar candidate events with one electron or muon and at least four jets in the final state, collected by CMS in proton-proton collisions at sqrt{s}=8 TeV at the LHC. The candidate events are selected from data corresponding to an integrated luminosity of 19.7 fb^-1. For each event the top-quark mass is reconstructed from a kinematic fit of the decay products to a ttbar hypothesis. In order to minimize the uncertainties from jet energy corrections, the top-quark mass is determined simultaneously with a jet energy scale factor (JSF), constrained by the known mass of the W boson decaying to quark-antiquark pairs. A joint likelihood fit taking into account multiple interpretations per event -- the ideogram method -- is used. From the simultaneous fit, a top-quark mass of 172.15 +/- 0.19 (stat.+JSF) +/- 0.61 (syst.) GeV is obtained. Using an additional constraint from the determination of the jet energy scale in photon/Z+jet events yields m_t = 172.38 +/- 0.16 (stat.+JSF) +/- 0.49 (syst.) GeV. The results are discussed in the context of different event generator implementations. Possible kinematic biases are studied by performing the measurement in different regions of the phase space.
000222219 536__ $$0G:(DE-HGF)POF3-611$$a611 - Fundamental Particles and Forces (POF3-611)$$cPOF3-611$$fPOF III$$x0
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000222219 693__ $$0EXP:(DE-H253)LHC-Exp-CMS-20150101$$1EXP:(DE-588)4398783-7$$5EXP:(DE-H253)LHC-Exp-CMS-20150101$$aLHC$$eLHC: CMS$$x0
000222219 7001_ $$0P:(DE-H253)PIP1004211$$aSchleper, Peter$$b1$$eThesis advisor
000222219 7001_ $$0P:(DE-H253)PIP1000047$$aStadie, Hartmut$$b2$$eThesis advisor
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