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

INSPIRE   JSON  (beta) PDGID:
Q009TPS
VALUE (GeV) CL% DOCUMENT ID TECN  COMMENT
$\bf{> 1800}$ 95 1
AAD
2024AK
 ATLS ${{\mathit q}}$ ${{\mathit g}}$ $\rightarrow$ ${{\mathit q}^{\,'}}{{\mathit t}^{\,'}}{{\mathit b}}$, B(${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit W}}{{\mathit b}}$) = 0.5
$>950$ 95 2
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 3
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 3
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. • •
4
AAD
2024V
 ATLS ${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit t}}$
5
HAYRAPETYAN
2024AR
 CMS ${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit t}}$ , ${{\mathit H}}{{\mathit t}}$
6
AAD
2022G
 ATLS ${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit H}}{{\mathit t}}$, singlet ${{\mathit t}^{\,'}}$
7
TUMASYAN
2022X
 CMS ${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit t}}$
1  AAD 2024AK 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 events with a reconstructed boosted top quark and a large missing transverse momentum. B(${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit W}}{{\mathit b}}$) + B(${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit Z}}$) + B(${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit H}}$) = 1 and B(${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit Z}}$) = B(${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit H}}$) = 1/4 are assumed.
2  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.
3  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.
4  AAD 2024V 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 ${{\mathit Z}}{{\mathit t}}$ decay channel, which consists of a pair of opposite-sign leptons from a ${{\mathit Z}}$-boson, ${{\mathit b}}$-tagged jets and forward jets. The mass range above 1 TeV is targeted and 95$\%$ CL limits on the mass and coupling strength of ${{\mathit t}^{\,'}}$ are set, in the singlet and doublet scenarios.
5  HAYRAPETYAN 2024AR based on 138 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ data at $\sqrt {s }$ = 13 TeV. No deviation from the SM expectation is found in the search for a vector-like ${{\mathit t}^{\,'}}$ in the all-hadronic final state where the ${{\mathit t}^{\,'}}$ is reconstructed as five jets, with three of them being ${{\mathit b}}$-jets. 95$\%$ CL upper limits are set on the product of the ${{\mathit t}^{\,'}}$-production cross section and the branching ratio B(${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit Z}}$) or B(${{\mathit t}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit H}}$).
6  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 ${{\mathit t}^{\,'}}$.
7  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