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Measurement of the top quark mass using a profile likelihood approach with the lepton + jets final states in proton–proton collisions at vs=13TeV

Abstract: 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 s=13TeV . 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 171.77±0.37GeV . This approach significantly improves the precision over previous measurements.

Autoría: Tumasyan A., Adam W., Andrejkovic J.W., Bergauer T., Chatterjee S., Damanakis K., Dragicevic M., Del Valle A.E., Hussain P.S., Jeitler M., Krammer N., Lechner L., Liko D., Mikulec I., Paulitsch P., Pitters F.M., Schieck J., Schöfbeck R., Schwarz D., Sonawane M., Templ S., Waltenberger W., Wulz C.E., Darwish M.R., Janssen T., Kello T., Sfar H.R., Van Mechelen P., Bols E.S., D’Hondt J., De Moor A., Delcourt M., El Faham H., Lowette

Fuente: European Physical Journal C, 2023, 83(10), 963

Editorial: Springer New York LLC

Fecha de publicación: 01/10/2023

Nº de páginas: 31

Tipo de publicación: Artículo de Revista

DOI: 10.1140/epjc/s10052-023-12050-4

ISSN: 1434-6044,1434-6052

Url de la publicación: https://doi.org/10.1140/epjc/s10052-023-12050-4

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