Search for vector-like T and B quark pairs in final states with leptons at root s=13 TeV



Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Eroe, J
et al (show 2252 more authors) (2018) Search for vector-like T and B quark pairs in final states with leptons at root s=13 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2018 (8). 177-.

Access the full-text of this item by clicking on the Open Access link.

Abstract

<jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>A search is presented for pair production of heavy vector-like T and B quarks in proton-proton collisions at <jats:inline-formula> <jats:alternatives> <jats:tex-math>$$ \sqrt{s}=13 $$</jats:tex-math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>13</mml:mn> </mml:math> </jats:alternatives> </jats:inline-formula> TeV. The data sample corresponds to an integrated luminosity of 35.9 fb<jats:sup>−1</jats:sup>, collected with the CMS detector at the CERN LHC in 2016. Pair production of T quarks would result in a wide range of final states, since vector-like T quarks of charge 2<jats:italic>e</jats:italic>/3 are predicted to decay to bW, tZ, and tH. Likewise, vector-like B quarks are predicted to decay to tW, bZ, and bH. Three channels are considered, corresponding to final states with a single lepton, two leptons with the same sign of the electric charge, or at least three leptons. The results exclude T quarks with masses below 1140–1300 GeV and B quarks with masses below 910–1240 GeV for various branching fraction combinations, extending the reach of previous CMS searches by 200–600 GeV. </jats:p>

Item Type: Article
Uncontrolled Keywords: Hadron-Hadron scattering (experiments), vector-like quarks
Depositing User: Symplectic Admin
Date Deposited: 09 May 2019 10:39
Last Modified: 17 Mar 2024 00:39
DOI: 10.1007/JHEP08(2018)177
Open Access URL: http://doi.org/10.1007/JHEP08(2018)177
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3040425