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Measurement of the top quark mass with lepton+jets final states using p p collisions at ?s=13TeV

Abstract: 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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 Autoría: Sirunyan A.M., Tumasyan A., Adam W., Ambrogi F., Asilar E., Bergauer T., Brandstetter J., Brondolin E., Dragicevic M., Erö J., Del Valle A.E., Flechl M., Friedl M., Frühwirth R., Ghete V.M., Hrubec J., Jeitler M., Krammer N., Krätschmer I., Liko D., Madlener T., Mikulec I., Rad N., Rohringer H., Schieck J., Schöfbeck R., Spanring M., Spitzbart D., Taurok A., Waltenberger W., Wittmann J., Wulz C.E., Zarucki M., Chekhovsky V., Mos

 Fuente: European Physical Journal C, 2018, 78, 891 - (ERRATUM) 2022, 82, 323

Editorial: Springer New York LLC

 Fecha de publicación: 02/11/2018

Nº de páginas: 27

Tipo de publicación: Artículo de Revista

 DOI: 10.1140/epjc/s10052-018-6332-9

ISSN: 1434-6044,1434-6052

Url de la publicación: https://doi.org/10.1140/epjc/s10052-018-6332-9