Measurement of the top quark mass using a profile likelihood approach with the lepton+jets final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
| Autor: | CMS Collaboration |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| DOI: | 10.3204/PUBDB-2023-00857 |
| Popis: | The mass of the top quark is measured in 36.3 fb$^{-1}$ of LHC proton-proton collision data collected with the CMS detector at $\sqrt{s}$ = 13 TeV. The measurement uses a sample of top quark pair candidate events containing one isolated electron or muon and at least four jets in the final state. For each event, the mass is reconstructed from a kinematic fit of the decay products to a top quark pair hypothesis. A profile likelihood method is applied using up to five observables to extract the top quark mass. The top quark mass is measured to be 171.77 $\pm$ 0.37 GeV. This approach significantly improves the precision over previous measurements. Comment: Submitted to the European Physical Journal C. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-20-008 (CMS Public Pages) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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