${{\mathit t}}{{\overline{\mathit t}}}{{\mathit Z}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

INSPIRE   JSON  (beta) PDGID:
Q007TZX
Q007TZX
VALUE (pb) DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$1.14$ $\pm0.05$ $\pm0.04$ 1
HAYRAPETYAN
2025S
 
CMS $\sigma\mathrm {({{\mathit t}} {{\overline{\mathit t}}} {{\mathit Z}}+{{\mathit t}} {{\mathit W}} {{\mathit Z}})}$
$0.86$ $\pm0.04$ $\pm0.04$ 2
AAD
2024AN
 
ATLS 2,3,4${{\mathit \ell}}$ + jets
$0.99$ $\pm0.05$ $\pm0.08$ 3, 4
AAD
2021AS
 
ATLS 3,4${{\mathit \ell}}$ + jets
$0.95$ $\pm0.05$ $\pm0.06$ 5
SIRUNYAN
2020AB
 
CMS 3,4${{\mathit \ell}}$ + jets
$0.95$ $\pm0.08$ $\pm0.10$ 6
AABOUD
2019AR
 
ATLS 2,3,4${{\mathit \ell}}$ + $\not E_T$ + jets
$0.99$ ${}^{+0.09}_{-0.08}$ ${}^{+0.12}_{-0.10}$ 7
SIRUNYAN
2018BS
 
CMS ${{\mathit t}}$ ${{\overline{\mathit t}}}$ ${{\mathit Z}}$ $\rightarrow$ 3,4 ${{\mathit \ell}}$ + $\not E_T$ + jets
1  HAYRAPETYAN 2025S based on 138 fb${}^{-1}$ of data. Events with 3 or more leptons are used. It is about 2$\sigma $ larger than the NLO SM prediction.
2  AAD 2024AN based on 140 fb${}^{-1}$ of data. The result is consistent with the NLO+NNLL SM prediction including EW corrections of $0.863$ ${}^{+0.073}_{-0.085}$(scale)$~\pm0.028$(PDF + ${{\mathit \alpha}_{{{s}}}}$) pb. Also overall the differential cross sections are in good agreement with the SM predictions. All hadronic decays of ${{\mathit t}}{{\overline{\mathit t}}}$ are also included.
3  AAD 2021AS based on 139 fb${}^{-1}$ of data. The result is consistent with the SM prediction of $0.88$ ${}^{+0.09}_{-0.10}$ pb which includes NLO QCD+EW corrections. Also overall the differential cross sections are in good agreement with the SM predictions.
4  Superseded by AAD 2024AN
5  SIRUNYAN 2020AB based on 77.5 fb${}^{-1}$ of data at 13 TeV. The result is consistent with the NLO SM prediction of $0.84$ $\pm0.10$ pb. Differential cross sections are measured and used to constrain the anomalous couplings and Wilson coefficients for the ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit Z}}$ interaction.
6  AABOUD 2019AR based on 35.9 fb${}^{-1}$ of data. ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit W}}$ and ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit Z}}$ cross sections are simultaneously measured using a combined fit to the events divided into multiple regions. The result is consistent with the SM prediction at NLO $0.88$ ${}^{+0.09}_{-0.11}$ pb. It is also used to constrain the Wilson coefficients for dimension-six operators which modify the ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit Z}}$ vertex.
7  Based on 35.9 fb${}^{-1}$ of proton-proton data taken at $\sqrt {s }$ = 13 TeV. The result is consistent with the SM prediction and is used to constrain the Wilson coefficients for dimension-six operators describing new interactions. The result is consistent with the SM prediction at NLO $0.839$ $\pm0.101$ pb.
References