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

INSPIRE   PDGID:
Q009TPS
VALUE (GeV) CL% DOCUMENT ID TECN  COMMENT
$>950$ 95 1
AAD
2016AV
 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
ABAZOV
2011F
 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
ABAZOV
2011F
 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
• • We do not use the following data for averages, fits, limits, etc. • •
3
AAD
2022G
 ATLS ${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit H}}{{\mathit t}}$, singlet ${{\mathit t}^{\,'}}$
4
TUMASYAN
2022X
 CMS ${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit t}}$
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  ABAZOV 2011F based on 5.4 fb${}^{-1}$ of data in ppbar collisions at 1.96 TeV. It 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.
3  AAD 2022G based on 139 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ data at $\sqrt {s }$ = 13 TeV. No significant excess over SM expectation is found in the search for a vector-like ${{\mathit t}^{\,'}}$ in the ${{\mathit H}}{{\mathit t}}$ decay channel, where ${{\mathit H}}$ and ${{\mathit t}}$ are reconstructed as single jets. The mass range between 1.0 and 2.3 TeV is targeted and 95$\%$ CL limits on the production section times the decay branching fraction are set depending on the coupling and mass of ${{\mathit t}^{\,'}}$.
4  TUMASYAN 2022X based on 137 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ data at $\sqrt {s }$ = 13 TeV. No significant excess over SM expectation is found in the search for a vector-like ${{\mathit t}^{\,'}}$ in the ${{\mathit Z}}{{\mathit t}}$ decay channel, where ${{\mathit Z}}$ decays to neutrinos and ${{\mathit t}}$ decays hadronically. The 95$\%$ CL limits on the production section times the decay branching fraction are set depending on the coupling and mass of ${{\mathit t}^{\,'}}$.
References