${{\mathit b}^{\,'}}(-1$/3) mass limits from single production in ${{\mathit p}}{{\overline{\mathit p}}}$ and ${{\mathit p}}{{\mathit p}}$ collisions

INSPIRE   PDGID:
Q008BPS
VALUE (GeV) CL% DOCUMENT ID TECN  COMMENT
$\bf{> 3000}$ 95 1
TUMASYAN
2022O
 CMS ${{\mathit g}}$ ${{\mathit b}}$ $\rightarrow$ ${{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$, B( ${{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$)=1
$\bf{> 693}$ 95 2
ABAZOV
2011F
 D0 ${{\mathit q}}$ ${{\mathit u}}$ $\rightarrow$ ${{\mathit q}^{\,'}}{{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit q}^{\,'}}({{\mathit W}}{{\mathit u}}$) ${{\widetilde{\mathit \kappa}}}_{{{\mathit u}} {{\mathit b}^{\,'}}}$=1, B( ${{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit W}}{{\mathit u}}$)=1
$\bf{> 430}$ 95 2
ABAZOV
2011F
 D0 ${{\mathit q}}$ ${{\mathit d}}$ $\rightarrow$ ${{\mathit q}}{{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit q}}({{\mathit Z}}{{\mathit d}}$) ${{\widetilde{\mathit \kappa}}}_{{{\mathit d}} {{\mathit b}^{\,'}}}=\sqrt {2 }$, B( ${{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit Z}}{{\mathit d}}$)=1
• • We do not use the following data for averages, fits, limits, etc. • •
3
AAD
2023CQ
 ATLS ${{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit b}}{{\mathit h}}$ ( ${{\mathit h}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$)
$>2600$ 95 4
SIRUNYAN
2021AG
 CMS ${{\mathit g}}$ ${{\mathit b}}$ $\rightarrow$ ${{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$, B( ${{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$)=1
5
SIRUNYAN
2019AI
 CMS ${{\mathit b}}$ ${{\mathit Z}}$ $/$ ${{\mathit t}}$ ${{\mathit W}}$ $\rightarrow$ ${{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$
$>1500$ 95 6
AAD
2016AH
 ATLS ${{\mathit g}}$ ${{\mathit b}}$ $\rightarrow$ ${{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$, B( ${{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$)=1
$> 1390$ 95 7
KHACHATRYAN
2016I
 CMS ${{\mathit g}}$ ${{\mathit b}}$ $\rightarrow$ ${{\mathit b}_{{{L}}}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$, B( ${{\mathit b}_{{{L}}}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$)=1
$> 1430$ 95 8
KHACHATRYAN
2016I
 CMS ${{\mathit g}}$ ${{\mathit b}}$ $\rightarrow$ ${{\mathit b}_{{{R}}}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$, B( ${{\mathit b}_{{{R}}}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$)=1
$> 1530$ 95 9
KHACHATRYAN
2016I
 CMS ${{\mathit g}}$ ${{\mathit b}}$ $\rightarrow$ ${{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$, B( ${{\mathit b}^{\,'}}$ $\rightarrow$ ${{\mathit t}}{{\mathit W}}$)=1
1  TUMASYAN 2022O based on 138 fb${}^{-1}$ of data in ${{\mathit p}}{{\mathit p}}$ collisions at 13 TeV. No significant excess over SM expectation is found in the search for a left-handed ${{\mathit b}^{\,'}}$ assuming 100$\%$ decay to ${{\mathit t}}{{\mathit W}}$ using a ${{\mathit t}}$-tagged jet and a lepton from ${{\mathit W}}$. The model assumes that the ${{\mathit b}^{\,'}}$ has the excited quark couplings. The bound is from a statistical combination with an earlier analysis by SIRUNYAN 2021AG. The 95$\%$ CL bounds are also set as 3.0, 3.0, and 3.2 TeV, respectively, for left-handed, right-handed, and vector-like couplings.
2  ABAZOV 2011F 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.
3  AAD 2023CQ based on 139 fb${}^{-1}$ of data in ${{\mathit p}}{{\mathit p}}$ collisions at 13 TeV. No significant excess over SM expectation is found. Limits on mass and production cross section of a vector-like ${{\mathit b}^{\,'}}$ are obtained in several theoretical scenarios determined by the couplings betwen ${{\mathit b}^{\,'}}$ and ${{\mathit W}}$, ${{\mathit Z}}$, ${{\mathit h}}$.
4  SIRUNYAN 2021AG based on 137 fb${}^{-1}$ of data in ${{\mathit p}}{{\mathit p}}$ collisions at 13 TeV. No significant excess over SM expectation is found in the search for a left-handed ${{\mathit b}^{\,'}}$ assuming 100$\%$ decay to ${{\mathit t}}{{\mathit W}}$ using all hadronic final states, where ${{\mathit t}}$ and ${{\mathit W}}$ are tagged as single jets, respectively. The model assumes that the ${{\mathit b}^{\,'}}$ has the excited quark couplings. The 95$\%$ CL bounds are also set as 2.8 and 3.1 TeV, respectively, for the right-handed and vector-like couplings.
5  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.
6  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.
7  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.
8  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.
9  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.
References