Publication: Measurement of the top quark mass with lepton+jets final states using p p collisions at √s=13TeV
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2018-11-01
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© 2018, CERN for the benefit of the CMS collaboration.The mass of the top quark is measured using a sample of t t ¯ events collected by the CMS detector using proton-proton collisions at s=13TeV at the CERN LHC. Events are selected with one isolated muon or electron and at least four jets from data corresponding to an integrated luminosity of 35.9fb-1. For each event the mass is reconstructed from a kinematic fit of the decay products to a t t ¯ hypothesis. Using the ideogram method, the top quark mass is determined simultaneously with an overall jet energy scale factor (JSF), constrained by the mass of the W boson in q q ¯ ′ decays. The measurement is calibrated on samples simulated at next-to-leading order matched to a leading-order parton shower. The top quark mass is found to be 172.25±0.08(stat+JSF)±0.62(syst)GeV. The dependence of this result on the kinematic properties of the event is studied and compared to predictions of different models of t t ¯ production, and no indications of a bias in the measurements are observed.
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Fizik, Astronomi ve Astrofizik, Temel Bilimler, Mühendislik ve Teknoloji, Physics, Astronomy and Astrophysics, Natural Sciences, Engineering and Technology, Mühendislik, Bilişim ve Teknoloji (ENG), Temel Bilimler (SCI), Mühendislik, Uzay bilimi, ASTRONOMİ VE ASTROFİZİK, Engineering, Computing & Technology (ENG), Natural Sciences (SCI), ENGINEERING, SPACE SCIENCE, ASTRONOMY & ASTROPHYSICS, Mühendislik (çeşitli), Fizik Bilimleri, Fizik ve Astronomi (çeşitli), Engineering (miscellaneous), Physical Sciences, Physics and Astronomy (miscellaneous)
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Sirunyan A., Tumasyan A., Adam W., Ambrogi F., Asilar E., Bergauer T., Brandstetter J., Brondolin E., Dragicevic M., Erö J., et al., "Measurement of the top quark mass with lepton+jets final states using p p collisions at √s=13TeV", European Physical Journal C, cilt.78, sa.11, 2018