Journal Article

Measurement of the top quark mass using a profile likelihood approach with the lepton + jets final states in proton-proton collisions at s = 13 Te V

Pitters, F M, Mondal, K, Alves, G A, Moraes, A, Jaramillo, J, Rendón, C, Tran, T T, Coelho, E, Jeitler, M, Schöfbeck, R, Vanlaer, P, Filho, M Barroso Ferreira, Vermassen, B, Da Costa, E M, Waltenberger, W, Chatterjee, S, De Jesus Damiao, D, Teles, P Rebello, De Moor, A, Da Silveira, G G, Wertz, S, Bols, E S, Malara, A, Lowette, S, Mikulec, I, Kello, T, Darwish, M R, Jain, Sa, Tumasyan, A, Carvalho, W, Del Valle, A Escalante, Wulz, C-E, Schwarz, D, Postiau, N, Van Den Bossche, N, Clerbaux, B, Damanakis, K, Makarenko, I, Lemaitre, V, Dobur, D, Wezenbeek, L, Bruno, G, Pereira, M Alves Gallo, Liko, D, Templ, S, Paredes, S, Giammanco, A, Schieck, J, Van Doninck, W, De Lentdecker, G, Hohov, D, Delcourt, M, Malbouisson, H Brandao, Hussain, P S, Lee, K, Vannerom, D, Benecke, A, Knolle, J, Bury, F, Mestdach, G, Van Mechelen, P, Vischia, P, Dragicevic, M, Pétré, L, Bergauer, T, Vanden Bemden, M, Skovpen, K, Sfar, H Rejeb, Dos Santos Sousa, V, Janssen, T, Müller, D, Samalan, A, Paulitsch, P, Moortgat, S, Delaere, C, David, P, Sonawane, M, Mahdavikhorrami, M, Taliercio, A, De Souza, S Fonseca, D'Hondt, J, Caputo, C, Vander Velde, C, Júnior, W L Aldá, Hensel, C, Kr

2023

Overview

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.