Volume 321 - Sixth Annual Conference on Large Hadron Collider Physics (LHCP2018) - Posters
Search for pair- and single-production of vector-like quarks in final states with at least one Z boson decaying into a pair of electrons or muons in pp collision data collected with the ATLAS detector at $\sqrt{s}$= 13 TeV
E.M. Freundlich*  on behalf of the ATLAS Collaboration
*: corresponding author
Full text: pdf
Pre-published on: September 24, 2018
Published on: December 21, 2018
Abstract
A search for pair- and single-production of vector-like quarks $T$ and $B$ with a leptonically decaying $Z$ boson is presented.
The data were collected in $pp$ collisions at $\sqrt{s}=13\,\text{TeV}$ with the ATLAS detector at the LHC, corresponding to an integrated luminosity of $36.1\,\text{fb}^{-1}$.
Final states are required to contain a $Z$ boson reconstructed from a same-flavor pair of leptons with opposite electric charge and a third generation quark.
The analysis targets both pair- and single-production of vector-like quarks and no excess above the Standard Model expectation is found.
Lower mass limits on vector-like $T$ and $B$ quarks at 95% confidence level are derived and limits on the coupling to Standard Model quarks are set for single-production.
DOI: https://doi.org/10.22323/1.321.0017
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