Higgs couplings

top Yukawa coupling (${{\mathit \kappa}_{{{t}}}}$)

INSPIRE   JSON  (beta) PDGID:
S126YTC
VALUE CL% DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$0.84$ ${}^{+0.30}_{-0.46}$ 1
AAD
2024J
 ATLS ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit H}}$, ${{\mathit t}}{{\mathit H}}$, ${{\mathit H}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ , 13 TeV
$<1.9$ 95 2
AAD
2023BC
 ATLS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$\text{0.87 - 1.20}$ 95 3
AAD
2023Y
 ATLS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$\text{0.65 - 1.25}$ 95 4
AAD
2023Y
 ATLS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$\text{-1.09 - -0.74 or 0.77 - 1.3}$ 95 5
TUMASYAN
2023P
 CMS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$\text{0.86 - 1.26}$ 5, 6
TUMASYAN
2023P
 CMS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$0.95$ $\pm0.07$ 7, 8
ATLAS
2022
ATLS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$0.94$ $\pm0.11$ 7, 9
ATLAS
2022
ATLS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$0.94$ $\pm0.11$ 7, 10
ATLAS
2022
ATLS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$0.95$ ${}^{+0.07}_{-0.08}$ 11, 12
CMS
2022
CMS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$1.01$ ${}^{+0.11}_{-0.10}$ 11, 13
CMS
2022
CMS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$\text{-0.9 - -0.7 or 0.7 - 1.1}$ 95 14
SIRUNYAN
2021R
 CMS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$<1.7$ 95 15
SIRUNYAN
2020C
 CMS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$<1.67$ 95 16
SIRUNYAN
2019BY
 CMS ${{\mathit p}}{{\mathit p}}$, 13 TeV
$<2.1$ 95 17
SIRUNYAN
2018BU
 CMS ${{\mathit p}}{{\mathit p}}$, 13 TeV
1  AAD 2024J measure the $\mathit CP$ structure of the top Yukawa coupling using 139 fb${}^{-1}$ of data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The top Yukawa coupling strength modifier $\kappa _{t}$ is measured with the $\mathit CP$-mixing angle $\alpha $. See their Fig. 3.
2  AAD 2023BC measure the production of four top quarks with same-sign and multilepton final states with 140 fb${}^{-1}{{\mathit p}}{{\mathit p}}$ collision data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The results constraint the ratio of the top quark Yukawa coupling ${{\mathit y}_{{{t}}}}$ to its Standard Model value, yielding $\vert {{\mathit y}_{{{t}}}}/{{\mathit y}_{{{t}}}^{SM}}\vert $ $<$ 1.9 (see their erratum) at 95$\%$ CL. See their Fig. 8 as a function of $\kappa _{t}$ and $\mathit CP$-mixing angle.
3  AAD 2023Y constrain ${{\mathit \kappa}_{{{t}}}}$ from Higgs production rates with ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ with 139 fb${}^{-1}{{\mathit p}}{{\mathit p}}$ collision data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The quoted result is obtained assuming the SM loop structure in ${{\mathit g}}$ ${{\mathit g}}$ $\rightarrow$ ${{\mathit H}}$ and ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$. See their Fig. 14.
4  AAD 2023Y constrain ${{\mathit \kappa}_{{{t}}}}$ from Higgs production rates with ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ with 139 fb${}^{-1}{{\mathit p}}{{\mathit p}}$ collision data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The quoted result is obtained assuming effective couplings ${{\mathit \kappa}_{{{gluon}}}}$ and ${{\mathit \kappa}_{{{\gamma}}}}$ for ${{\mathit g}}$ ${{\mathit g}}$ $\rightarrow$ ${{\mathit H}}$ and ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$, respectively. See their Fig. 14.
5  TUMASYAN 2023P constrain ${{\mathit \kappa}_{{{t}}}}$ from ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit H}}$ and ${{\mathit t}}{{\mathit H}}$ decaying ${{\mathit H}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}^{*}}$ and ${{\mathit H}}$ $\rightarrow$ ${{\mathit \tau}}{{\mathit \tau}}$ (multilepton decay mode) with 138 fb${}^{-1}{{\mathit p}}{{\mathit p}}$ collision data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The ${{\mathit \kappa}_{{{t}}}}$ is obtained by fixing ${{\widetilde{\mathit \kappa}}_{{{t}}}}$ = 0 and other couplings (${{\mathit \kappa}_{{{V}}}}$ etc.) to the SM values. See their Fig. 9 for 2-dim contours and Table 6.
6  The quoted result is obtained by combining with other ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit H}}$ decaying ${{\mathit H}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ (SIRUNYAN 2020AS) and ${{\mathit H}}$ $\rightarrow$ 4 ${{\mathit \ell}}$ (SIRUNYAN 2021AE) and ${{\widetilde{\mathit \kappa}}_{{{t}}}}$ = 0. See their Fig. 12 for 2-dim contours and Table$~$7.
7  ATLAS 2022 report combined results (see their Extended Data Table 1) using up to 139 fb${}^{-1}$ of data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV, assuming ${\mathit m}_{{{\mathit H}}}$ = 125.09 GeV.
8  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.
9  ${{\mathit B}}_{inv}$ = ${{\mathit B}}_{undetected}$ = 0 is assumed. Coupling strength modifiers including effective photon, ${{\mathit Z}}{{\mathit \gamma}}$ and gluon are measured. See their Fig. 6.
10  ${{\mathit B}}_{inv}$ 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.
11  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.
12  Only SM particles assume to contribute to the loop-induced processes. See their Fig. 3 right.
13  Coupling strength modifiers including effective photon, ${{\mathit Z}}{{\mathit \gamma}}$ and gluon are measured. See their Fig. 4 left.
14  SIRUNYAN 2021R constrain the ratio of the top quark Yukawa coupling ${{\mathit y}_{{{t}}}}$ to its Standard Model value from ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit H}}$ and ${{\mathit t}}{{\mathit H}}$ production rates using 137 fb${}^{-1}{{\mathit p}}{{\mathit p}}$ collision data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. Assuming a SM Higgs couplings to $\tau $'s, the joint interval $-0.9$ $<$ ${{\mathit \kappa}_{{{t}}}}(={{\mathit y}_{{{t}}}}/{{\mathit y}_{{{t}}}^{SM}}$) $<$ $-0.7$ and 0.7 $<$ ${{\mathit \kappa}_{{{t}}}}$ $<$ 1.1 is obtained at 95$\%$ CL (see their Fig. 17).
15  SIRUNYAN 2020C search for the production of four top quarks with same-sign and multilepton final states with 137 fb${}^{-1}{{\mathit p}}{{\mathit p}}$ collision data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The results constraint the ratio of the top quark Yukawa coupling ${{\mathit y}_{{{t}}}}$ to its Standard Model value by comparing to the central value of a theoretical prediction (see their Refs. $\lbrack{}$1-2]), yielding $\vert {{\mathit y}_{{{t}}}}/{{\mathit y}_{{{t}}}^{SM}}\vert $ $<$ 1.7 at 95$\%$ CL. See their Fig. 5.
16  SIRUNYAN 2019BY measure the top quark Yukawa coupling from ${{\mathit t}}{{\overline{\mathit t}}}$ kinematic distributions, the invariant mass of the top quark pair and the rapidity difference between ${{\mathit t}}$ and ${{\overline{\mathit t}}}$, in the ${{\mathit \ell}}$+jets final state with 35.8 fb${}^{-1}{{\mathit p}}{{\mathit p}}$ collision data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The results constraint the ratio of the top quark Yukawa coupling to its the Standard Model to be $1.07$ ${}^{+0.34}_{-0.43}$ with an upper limit of 1.67 at 95$\%$ CL (see their Table III).
17  SIRUNYAN 2018BU search for the production of four top quarks with same-sign and multilepton final states with 35.9 fb${}^{-1}{{\mathit p}}{{\mathit p}}$ collision data at $\mathit E_{{\mathrm {cm}}}$ = 13 TeV. The results constraint the ratio of the top quark Yukawa coupling ${{\mathit y}_{{{t}}}}$ to its the Standard Model by comparing to the central value of a theoretical prediction (see their Ref. $\lbrack{}$16]), yielding $\vert {{\mathit y}_{{{t}}}}/{{\mathit y}_{{{t}}}^{SM}}\vert $ $<$ 2.1 at 95$\%$ CL.
References