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.
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Conference papers
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http://hal.in2p3.fr/in2p3-01501619
Contributor : Emmanuelle Vernay <>
Submitted on : Tuesday, April 4, 2017 - 2:21:53 PM
Last modification on : Tuesday, May 22, 2018 - 9:48:11 PM

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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. pp.262. ⟨in2p3-01501619⟩

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