Authors
Albert M Sirunyan, Armen Tumasyan, Wolfgang Adam, Federico Ambrogi, Ece Asilar, Thomas Bergauer, Johannes Brandstetter, Marko Dragicevic, Janos Erö, A Escalante Del Valle, Martin Flechl, Rudolf Fruehwirth, Vasile Mihai Ghete, Josef Hrubec, Manfred Jeitler, Natascha Krammer, Ilse Krätschmer, Dietrich Liko, Thomas Madlener, Ivan Mikulec, Navid Rad, Herbert Rohringer, Jochen Schieck, Robert Schöfbeck, Markus Spanring, Daniel Spitzbart, Anton Taurok, Wolfgang Waltenberger, Johannes Wittmann, C-E Wulz, Mateusz Zarucki, J Suarez Gonzalez, EA De Wolf, D Di Croce, X Janssen, J Lauwers, M Pieters, M Van De Klundert, H Van Haevermaet, P Van Mechelen, S Abu Zeid, F Blekman, J D’Hondt, I De Bruyn, J De Clercq, K Deroover, G Flouris, D Lontkovskyi, S Lowette, I Marchesini, S Moortgat, L Moreels, Q Python, K Skovpen, S Tavernier, W Van Doninck, P Van Mulders, I Van Parijs, D Beghin, B Bilin, H Brun, B Clerbaux, G De Lentdecker, H Delannoy, B Dorney, G Fasanella, L Favart, R Goldouzian, A Grebenyuk, AK Kalsi, T Lenzi, J Luetic, N Postiau, E Starling, L Thomas, C Vander Velde, P Vanlaer, D Vannerom, Q Wang, Tom Cornelis, Didar Dobur, Alexis Fagot, Muhammad Gul, Illia Khvastunov, D Poyraz, Christos Roskas, D Trocino, Michael Tytgat, Willem Verbeke, B Vermassen, M Vit, Nikolaos Zaganidis, H Bakhshiansohi, O Bondu, S Brochet, G Bruno, C Caputo, P David, C Delaere, M Delcourt, B Francois, A Giammanco, G Krintiras, V Lemaitre, A Magitteri, A Mertens, M Musich, K Piotrzkowski, A Saggio, M Vidal Marono, S Wertz, J Zobec, FL Alves, GA Alves, L Brito, M Correa Martins Junior, G Correia Silva, C Hensel, A Moraes, ME Pol, P Rebello Teles, E Belchior Batista Das Chagas, W Carvalho, J Chinellato, E Coelho, EM Da Costa, GG Da Silveira, D De Jesus Damiao, C De Oliveira Martins, S Fonseca De Souza, H Malbouisson, D Matos Figueiredo, M Melo De Almeida, C Mora Herrera, L Mundim, H Nogima, WL Prado Da Silva, LJ Sanchez Rosas, A Santoro, A Sznajder, M Thiel, EJ Tonelli Manganote, F Torres Da Silva De Araujo, A Vilela Pereira, S Ahuja, CA Bernardes, L Calligaris, TR Fernandez Perez Tomei, EM Gregores, PG Mercadante
Publication date
2018/6/4
Journal
Physical review letters
Volume
120
Issue
23
Pages
231801
Publisher
American Physical Society
Description
The observation of Higgs boson production in association with a top quark-antiquark pair is reported, based on a combined analysis of proton-proton collision data at center-of-mass energies of , 8, and 13 TeV, corresponding to integrated luminosities of up to 5.1, 19.7, and , respectively. The data were collected with the CMS detector at the CERN LHC. The results of statistically independent searches for Higgs bosons produced in conjunction with a top quark-antiquark pair and decaying to pairs of bosons, bosons, photons, leptons, or bottom quark jets are combined to maximize sensitivity. An excess of events is observed, with a significance of 5.2 standard deviations, over the expectation from the background-only hypothesis. The corresponding expected significance from the standard model for a Higgs boson mass of 125.09 GeV is 4.2 standard deviations. The combined best fit signal strength …
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