$>1500$ |
95 |
1 |
|
ATLS |
$> 1390$ |
95 |
2 |
|
CMS |
$> 1430$ |
95 |
3 |
|
CMS |
$\bf{> 1530}$ |
95 |
4 |
|
CMS |
$\bf{> 693}$ |
95 |
5 |
|
D0 |
$\bf{> 430}$ |
95 |
5 |
|
D0 |
• • • We do not use the following data for averages, fits, limits, etc. • • • |
|
|
6 |
|
CMS |
1
AAD 2016AH based on 20.3 fb${}^{-1}$ of data in ${{\mathit p}}{{\mathit p}}$ collisions at 8 TeV. No significant excess over SM expectation is found in the search for a vector-like ${{\mathit b}^{\,'}}$ in the single-lepton and dilepton channels (${{\mathit \ell}}$ or ${{\mathit \ell}}{{\mathit \ell}}$ ) + 1,2,3 ${{\mathit j}}$ (${}\geq{}1{{\mathit b}}$). The model assumes that the ${{\mathit b}^{\,'}}$ has the excited quark couplings.
|
2
Based on 19.7 fb${}^{-1}$ of data in ${{\mathit p}}{{\mathit p}}$ collisions at 8 TeV. Limit on left-handed ${{\mathit b}^{\,'}}$ assuming 100$\%$ decay to ${{\mathit t}}{{\mathit W}}$ and using all-hadronic, lepton + jets, and dilepton final states.
|
3
Based on 19.7 fb${}^{-1}$ of data in ${{\mathit p}}{{\mathit p}}$ collisions at 8 TeV. Limit on right-handed ${{\mathit b}^{\,'}}$ assuming 100$\%$ decay to ${{\mathit t}}{{\mathit W}}$ and using all-hadronic, lepton + jets, and dilepton final states.
|
4
Based on 19.7 fb${}^{-1}$ of data in ${{\mathit p}}{{\mathit p}}$ collisions at 8 TeV. Limit on vector-like ${{\mathit b}^{\,'}}$ assuming 100$\%$ decay to ${{\mathit t}}{{\mathit W}}$ and using all-hadronic, lepton+jets, and dilepton final states.
|
5
Based on 5.4 fb${}^{-1}$ of data in ppbar collisions at 1.96 TeV. ABAZOV 2011F looked for single production of ${{\mathit b}^{\,'}}$ via the ${{\mathit W}}$ or ${{\mathit Z}}$ coupling to the first generation up or down quarks, respectively. Model independent cross section limits for the single production processes ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit b}^{\,'}}{{\mathit q}}$ $\rightarrow$ ${{\mathit W}}{{\mathit u}}{{\mathit q}}$ , and ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit b}^{\,'}}{{\mathit q}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit d}}{{\mathit q}}$ 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.
|
6
SIRUNYAN 2019AI based on 35.9 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ data at $\sqrt {s }$ = 13 TeV. Exclusion limits are set on the product of the production cross section and branching fraction for the ${{\mathit b}^{\,'}{(-1/3)}}{+}$ ${{\mathit b}}$ and ${{\mathit b}^{\,'}{(-1/3)}}{+}$ ${{\mathit t}}$ modes as a function of the vector-like quark mass in Figs. 7 and 8 and in Tab. 2 for relative vector-like quark widths between 1 and 30$\%$ for left- and right-handed vector-like quark couplings. No significant deviation from the SM prediction is observed.
|
|