2018
article
Measurement of the top quark mass with lepton+jets final states using pp collisions at $\sqrt{s}=$ 13 TeV
A. M. Sirunyan, A. R. Tumasyan, W. Adam, F. Ambrogi, E. Asilar, T. Bergauer, J. Brandstetter, M. Dragicevic, J. Eroe, A. Escalante Del Valle, M. Flechl, R. Fruehwirth, V. M. Ghete, J. Hrubec, M. Jeitler, N. Krammer, I. Kraetschmer, D. Liko, T. Madlener, I. Mikulec, Rad, N., H. Rohringer, J. Schieck, R. Schoefbeck, M. Spanring, D. Spitzbart, A. Taurok, W. Waltenberger, J. Wittmann, C. -E Wulz, M. Zarucki, V. Chekhovsky, V. Mossolov, J. Palacios González, E. A. Wolf, D. Di Croce, X. Janssen, J. Lauwers, M. Pieters, M. Klundert, Van, H. Haevermaet, P. Mechelen, N. Remortel, Abu Zeid, S., F. Blekman, J. D Hondt, J. Clercq, K. Deroover, G. Flouris, D. Lontkovskyi, S. Lowette, I. Marchesini, S. Moortgat, L. Moreels, Q. Python, K. Skovpen, S. Tavernier, W. Doninck, P. Mulders, I. Parijs, D. Beghin, B. Bilin, H. Brun, B. Clerbaux, De, G. Lentdecker, H. Delannoy, B. Dorney, G. Fasanella, L. Favart, R. Goldouzian, A. Grebenyuk, A. K. Kalsi, T. Lenzi, J. Luetic, T. Seva, E. Starling, L. Thomas, C. Vander Velde, P. Vanlaer, D. Vannerom, R. Yonamine, T. Cornelis, D. Dobur, A. Fagot, M. Gul, Khvastunov, I., D. Poyraz, C. Roskas, D. Trocino, M. Tytgat, W. Verbeke, B. Vermassen, M. Vit, N. Zaganidis, H. Bakhshiansohi, O. Bondu, S. Brochet, G. E. Bruno, C. Caputo, A. Caudron, P. David, S. Visscher, C. Delaere, M. Delcourt, B. Francois, A. Giammanco, G. Krintiras, V. Lemaitre, A. Magitteri, A. Mertens, M. Musich, K. Piotrzkowski, L. Quertenmont, A. Saggio, M. Vidal Marono, S. Wertz, J. Zobec, W. L. Alda Junior, F. L. Alves, G. A. Alves, L. Brito, G. Correia Silva, C. Hensel, A. Moraes, M. E. Pol, P. Rebello Teles, E. Belchior Batista Das Chagas, W. Carvalho, J. Chinellato, E. Coelho, E. M. Da Costa, G. G. Da Silveira, De Jesus, D. Jesus Damiao, C. Oliveira martins, S. Fonseca Souza, H. Brandao Malbouisson, M. Medina Jaime, D. Matos Figueiredo, Melo, M. Melo Almeida, C. Mora Herrera, L. Mundim, H. Nogima, L. J. Sanchez Rosas, A. Santoro, A. Sznajder, M. Thiel, E. J. Tonelli Manganote, F. Torres Da Silva Araujo, Vilela, A. Vilela Pereira, S. Ahuja, C. A. Bernardes, L. Calligaris, T. R. Fernandez Perez Tomei, E. M. Gregores, P. G. Mercadante, S. F. Novaes, Sandra S. Padula, D. Romero Abad, Ruiz, J. C. Ruiz Vargas, A. Aleksandrov, R. Hadjiiska, P. Iaydjiev, A. Marinov, M. Misheva, M. Rodozov, M. Shopova, G. Sultanov, A. Dimitrov, L. Litov, B. Pavlov, Petkov, P., W. X. Fang, X. B. Gao, L. Yuan, M. Ahmad, J. G. Bian, G. M. Chen, H. S. Chen, M. L. Chen, Y. Q. Chen, C. H. Jiang, H., D. Leggat, H. Liao, Z. -A Liu, F. Romeo, S. M. Shaheen, M., A. Spiezia, J. Tao
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Le résumé fourni par la source
The mass of the top quark is measured using a sample of t (t) over bar events collected by the CMS detector using proton-proton collisions at root s = 13 TeV 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 35.9 fb(-1). For each event the mass is reconstructed from a kinematic fit of the decay products to a t (t) over bar 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) over bar' decays. The measurement is calibrated on samples simulated at next-to-leading order matched to a leadingorder 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) over bar production, and no indications of a bias in the measurements are observed.
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Les sujets associés
Particle physics theoretical and experimental studiesComputational Physics and Python ApplicationsHigh-Energy Particle Collisions Research