HIGGS COUPLINGS

${{\mathit Z}}$ boson coupling (${{\mathit \kappa}_{{{Z}}}}$) INSPIRE search

S126KZC
VALUE DOCUMENT ID TECN  COMMENT
• • • We do not use the following data for averages, fits, limits, etc. • • •
1
HAYRAPETYAN
2025B
 CMS ${{\mathit p}}{{\mathit p}}$, 13 TeV, VBF ${{\mathit W}}{{\mathit H}}$, coupling sign
2
AAD
2024BM
 ATLS ${{\mathit p}}{{\mathit p}}$, 13 TeV, VBF ${{\mathit W}}{{\mathit H}}$, coupling sign
$0.99$ ${}^{+0.06}_{-0.05}$ 3, 4
ATLAS
2022
ATLS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$0.99$ $\pm0.06$ 3, 5
ATLAS
2022
ATLS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$0.98$ ${}^{+0.02}_{-0.05}$ 3, 6
ATLAS
2022
ATLS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$1.04$ $\pm0.07$ 7, 8
CMS
2022
CMS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$1.04$ $\pm0.07$ 7, 9
CMS
2022
CMS ${{\mathit p}}{{\mathit p}}$, 13 TeV
1  HAYRAPETYAN 2025B present the determination of the relative sign of $\kappa _{W}$ and $\kappa _{Z}$ with VBF ${{\mathit W}}{{\mathit H}}$, ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ using 138 fb${}^{-1}$ of data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The opposite-sign coupling hypothesis is excluded with a significance beyond 5$\sigma $.
2  AAD 2024BM present the determination of the relative sign of $\kappa _{W}$ and $\kappa _{Z}$ with VBF ${{\mathit W}}{{\mathit H}}$, ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ using 140 fb${}^{-1}$ of data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The opposite-sign coupling hypothesis is excluded with a significance beyond 5$\sigma $.
3  ATLAS 2022 report combined results (see their Extended Data Table 1) using up to 139 fb${}^{-1}$ of data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV, assuming ${\mathit m}_{{{\mathit H}}}$ = 125.09 GeV.
4  All modifiers($\kappa $) $>$ 0, and $\kappa _{c}$ = $\kappa _{t}$ (${{\mathit B}}_{inv}$ =${{\mathit B}}_{undetected}$ = 0) are assumed. Only SM particles assume to contribute to the loop-induced processes.See their Fig. 5, which shows both $\kappa _{c}$ = $\kappa _{t}$ and$\kappa _{c}$ floating.
5  ${{\mathit B}}_{inv}$ = ${{\mathit B}}_{undetected}$ = 0 is assumed. Coupling strength modifiers including effective photon, ${{\mathit Z}}{{\mathit \gamma}}$ and gluon are measured. See their Fig. 6.
6  ${{\mathit B}}_{inv}$ floating, ${{\mathit B}}_{undetected}{}\geq{}$ 0, and $\kappa _{V}{}\leq{}$ 1 are assumed. Coupling strength modifiers including effective photon, ${{\mathit Z}}{{\mathit \gamma}}$ and gluon are measured. See their Fig. 6.
7  CMS 2022 report combined results (see their Extended Data Table 2) using up to 138 fb${}^{-1}$ of data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV, assuming ${\mathit m}_{{{\mathit H}}}$ = 125.38 GeV.
8  Only SM particles assume to contribute to the loop-induced processes. See their Fig. 3 right.
9  Coupling strength modifiers including effective photon, ${{\mathit Z}}{{\mathit \gamma}}$ and gluon are measured. See their Fig. 4 left.
  References:
HAYRAPETYAN 2025B
PL B860 139202 Study of WH production through vector boson scattering and extraction of the relative sign of the W and Z couplings to the Higgs boson in proton-proton collisions at $\sqrt{s}$ = 13 TeV
AAD 2024BM
PRL 133 141801 Determination of the relative sign of the Higgs boson couplings to $W$ and $Z$ bosons using $WH$ production via vector-boson fusion with the ATLAS detector
ATLAS 2022
NAT 607 52 A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery
Also
NAT 612 E24 (errat.) A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery
CMS 2022
NAT 607 60 A portrait of the Higgs boson by the CMS experiment ten years after the discovery