${{\boldsymbol t}^{\,'}}$(2/3) mass limits from single production in ${{\boldsymbol p}}{{\overline{\boldsymbol p}}}$ and ${{\boldsymbol p}}{{\boldsymbol p}}$ collisions INSPIRE search

VALUE (GeV) CL% DOCUMENT ID TECN  COMMENT
$>950$ 95 1
 2016 AV
ATLS ${{\mathit q}}$ ${{\mathit g}}$ $\rightarrow$ ${{\mathit q}^{\,'}}{{\mathit t}^{\,'}}{{\mathit b}}$ , B( ${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit W}}{{\mathit b}}$ )=0.5
$\bf{> 403}$ 95 2
 2011 F
D0 ${{\mathit q}}$ ${{\mathit d}}$ $\rightarrow$ ${{\mathit q}^{\,'}}{{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit q}^{\,'}}$ ( ${{\mathit W}}{{\mathit d}}$ ) ${{\widetilde{\mathit \kappa}}}_{ {{\mathit d}} {{\mathit t}^{\,'}} }$=1, B( ${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit W}}{{\mathit d}}$ )=1
$\bf{> 551}$ 95 2
 2011 F
D0 ${{\mathit q}}$ ${{\mathit u}}$ $\rightarrow$ ${{\mathit q}}{{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit q}}$ ( ${{\mathit Z}}{{\mathit u}}$ ) ${{\widetilde{\mathit \kappa}}}_{ {{\mathit u}} {{\mathit t}^{\,'}} }=\sqrt {2 }$, B( ${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit u}}$ )=1
1  AAD 2016AV based on 20.3 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ data at $\sqrt {s }$ = 8 TeV. No significant excess over SM expectation is found in the search for a fully reconstructed vector-like ${{\mathit t}^{\,'}}$ in the mode ${{\mathit \ell}}$ + $\not E_T$ + ${}\geq{}2{{\mathit j}}$ (${}\geq{}1{{\mathit b}}$). A veto on massive large-radius jets is used to reject the ${{\mathit t}}{{\overline{\mathit t}}}$ background.
2  Based on 5.4 fb${}^{-1}$ of data in ppbar collisions at 1.96 TeV. ABAZOV 2011F looked for single production of ${{\mathit t}^{\,'}}$ via the ${{\mathit Z}}$ or ${{\mathit E}}$ coupling to the first generation up or down quarks, respectively. Model independent cross section limits for the single production processes ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit t}^{\,'}}{{\mathit q}}$ $\rightarrow$ ( ${{\mathit W}}{{\mathit d}}$ )${{\mathit q}}$, and ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit t}^{\,'}}{{\mathit q}}$ $\rightarrow$ ( ${{\mathit Z}}{{\mathit d}}$ )${{\mathit q}}$ are given in Figs. 3 and 4, respectively, and the mass limits are obtained for the model of ATRE 2009 with degenerate bi-doublets of vector-like quarks.
References:
EPJ C76 442 Search for Single Production of Vector-like Quarks Decaying into ${{\mathit W}}{\mathit {\mathit b}}$ in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV with the ATLAS Detector
PRL 106 081801 Search for Single Vectorlike Quarks in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV