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Measurement of the top quark mass using a profile likelihood approach with the lepton + jets final states in
A Tumasyan1,2, W Adam3, J W Andrejkovic3
1Yerevan Physics Institute, Yerevan, Armenia.
Abstract:
The mass of the top quark is measured in 36.3 of LHC proton-proton collision data collected with the CMS detector at . 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 four observables per event to extract the top quark mass. The top quark mass is measured to be . This approach significantly improves the precision over previous measurements.
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