Search for vector-like quarks and heavy resonances decaying to top quarks in ATLAS

Abstract : This document presents the recent results of the ATLAS experiment at the LHC concerning the t ¯t resonance and vector-like quark searches. A search for t ¯t resonances at 13 TeV in protonproton collisions data is performed in the lepton+jet final state and for boosted top topologies. A re-interpretation of the analysis performed with the data recorded at the center of mass energy of 8 TeV, is also presented, for a scalar resonant signal. A vector-like top pair production is also searched for, through three analyses where the vector-like quark decay to Zt, Ht or Wb. A comparison of those analyses is presented. In addition, vector-like quarks are searched via the same sign lepton topology. The results are presented as mass limits on the vector-like top branching ratio plane and as the cross section limit on the T5=3 pair production.
Type de document :
Communication dans un congrès
25th International Workshop on Deep Inelastic Scattering and Related Topics (DIS 17), Apr 2017, Birmingham, United Kingdom. Proceedings of Science, DIS2017, pp.262, 2017, 〈https://indico.cern.ch/event/568360〉
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http://hal.in2p3.fr/in2p3-01501619
Contributeur : Emmanuelle Vernay <>
Soumis le : mardi 4 avril 2017 - 14:21:53
Dernière modification le : mardi 22 mai 2018 - 21:48:11

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  • HAL Id : in2p3-01501619, version 1

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C. Camincher. Search for vector-like quarks and heavy resonances decaying to top quarks in ATLAS. 25th International Workshop on Deep Inelastic Scattering and Related Topics (DIS 17), Apr 2017, Birmingham, United Kingdom. Proceedings of Science, DIS2017, pp.262, 2017, 〈https://indico.cern.ch/event/568360〉. 〈in2p3-01501619〉

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