| $\bf{
0.982 \pm0.042}$
|
OUR FIT
|
| $1.024$ ${}^{+0.077}_{-0.081}$ |
7872 |
1 |
|
DLPH |
| $0.971$ $\pm0.055$ $\pm0.030$ |
10689 |
2 |
|
ALEP |
| $0.88$ ${}^{+0.09}_{-0.08}$ |
9800 |
3 |
|
OPAL |
| $1.013$ ${}^{+0.067}_{-0.064}$ $\pm0.026$ |
10575 |
4 |
|
L3 |
| • • • We do not use the following data for averages, fits, limits, etc. • • • |
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|
5 |
|
ATLS |
|
|
6 |
|
CMS |
|
|
7 |
|
CMS |
|
|
8 |
|
ATLS |
|
|
9 |
|
CMS |
|
|
10 |
|
D0 |
|
|
11 |
|
D0 |
|
|
12 |
|
CMS |
|
334 |
13 |
|
CDF |
|
53 |
14 |
|
H1 |
| $1.07$ ${}^{+0.26}_{-0.29}$ |
|
15 |
|
D0 |
|
|
16 |
|
D0 |
|
|
17 |
|
D0 |
| $0.68$ ${}^{+0.17}_{-0.15}$ |
1880 |
18 |
|
DLPH |
|
1617 |
19 |
|
CDF |
|
17 |
20 |
|
D0 |
|
141 |
21 |
|
D0 |
| $1.25$ ${}^{+0.21}_{-0.20}$ $\pm0.06$ |
2298 |
22 |
|
DLPH |
|
|
23 |
|
ZEUS |
| $0.92$ $\pm0.34$ |
331 |
24 |
|
D0 |
|
1
ABDALLAH 2010 use data on the final states ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit j}}{{\mathit j}}{{\mathit \ell}}{{\mathit \nu}}$ , ${{\mathit j}}{{\mathit j}}{{\mathit j}}{{\mathit j}}$ , ${{\mathit j}}{{\mathit j}}{{\mathit X}}$ , ${{\mathit \ell}}{{\mathit X}}$ , at center-of-mass energies between $189 - 209$ GeV at LEP2, where ${{\mathit j}}$ = jet, ${{\mathit \ell}}$ = lepton, and ${{\mathit X}}$ represents missing momentum. The fit is carried out keeping all other parameters fixed at their SM values.
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2
SCHAEL 2005A study single$-$photon, single$-{{\mathit W}}$, and $WW$ $-$pair production from 183 to 209 GeV. Each parameter is determined from a single$-$parameter fit in which the other parameters assume their Standard Model values.
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3
ABBIENDI 2004D combine results from ${{\mathit W}^{+}}{{\mathit W}^{-}}$ in all decay channels. Only $\mathit CP$-conserving couplings are considered and each parameter is determined from a single-parameter fit in which the other parameters assume their Standard Model values. The 95$\%$ confidence interval is $0.73<\kappa _{{{\mathit \gamma}}}<1.07$.
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4
ACHARD 2004D study $WW$ $-$pair production, single$-{{\mathit W}}$ production and single$-$photon production with missing energy from 189 to 209 GeV. The result quoted here is obtained including data from 161 to 183 GeV, ACCIARRI 1999Q. Each parameter is determined from a single$-$parameter fit in which the other parameters assume their Standard Model values.
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5
AABOUD 2017U analyze production of ${{\mathit W}}{{\mathit W}}$ or ${{\mathit W}}{{\mathit Z}}$ boson pairs with one ${{\mathit W}}$ boson decaying to electron or muon plus neutrino, and the other ${{\mathit W}}$ or ${{\mathit Z}}$ boson decaying hadronically. The hadronic decay system is reconstructed as either a resolved two-jet system or as a single large jet. Analysing the transverse momentum distribution of the hadronic system above 100 GeV yields the following limit at 95$\%$ CL for the form factor cut-off scale ${{\mathit \Lambda}_{{FF}}}\rightarrow\infty{}$: $0.939$ $<$ ${{\mathit \kappa}}_{{{\mathit \gamma}}}$ $<$ $1.064$.
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6
SIRUNYAN 2017X study ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}}$ / ${{\mathit W}}$ ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \ell}}{{\mathit \nu}}{{\mathit q}}{{\overline{\mathit q}}}$ production at 8 TeV where ${{\mathit \ell}}$ is an electron or muon with $p_T$ $>$ 30 or 25 GeV respectively. Suitable cuts are put on the $p_T$ of the dijet system and the missing $\mathit E_{T}$ of the event yielding a total of 285 and 204 ${{\mathit W}}{{\mathit V}}$ events observed in the electron and muon channels. The following 95$\%$ C.L. limit is obtained: 0.956 $<$ ${{\mathit \kappa}_{{\gamma}}}$ $<$ 1.063.
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7
CHATRCHYAN 2014AB measure ${{\mathit W}}{{\mathit \gamma}}$ production cross section for ${{\mathit p}}{}^{\gamma }_{T}>$ 15 GeV and R( ${{\mathit \ell}}{{\mathit \gamma}}$ ) $>$ 0.7, which is the separation between the ${{\mathit \gamma}}$ and the final state charged lepton (${{\mathit e}}$ or ${{\mathit \mu}}$) in the azimuthal angle-pseudorapidity (${{\mathit \phi}}−{{\mathit \eta}}$) plane. After background subtraction the number of ${{\mathit e}}{{\mathit \nu}}{{\mathit \gamma}}$ and ${{\mathit \mu}}{{\mathit \nu}}{{\mathit \gamma}}$ events is determined to be $3200$ $\pm325$ and $4970$ $\pm543$ respectively, compatible with expectations from the SM. This leads to a 95$\%$ CL limit of 0.62 $<{{\mathit \kappa}}_{{{\mathit \gamma}}}<$ 1.29, assuming other parameters have SM values.
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8
AAD 2013AN study ${{\mathit W}}{{\mathit \gamma}}$ production in ${{\mathit p}}{{\mathit p}}$ collisions. In events with no additional jet, 4449 (6578) W decays to electron (muon) are selected, with an expected background of $1662$ $\pm262$ ($2538$ $\pm362$) events. Analysing the photon $p_T$ spectrum above 100 GeV yields a 95$\%$ C.L. limit of 0.59 $<$ $\kappa _{\gamma }$ $<$ 1.46. Supersedes AAD 2012BX.
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9
CHATRCHYAN 2013BF determine the ${{\mathit W}^{+}}{{\mathit W}^{-}}$ production cross section using unlike sign di-lepton (${{\mathit e}}$ or ${{\mathit \mu}}$) events with high $\not\!\!p_T$. The leptons have $p_T>$ 20 GeV/c and are isolated. 1134 candidate events are observed with an expected SM background of $247$ $\pm34$. The $p_T$ distribution of the leading lepton is fitted to obtain 95$\%$ C.L. limits of 0.79 ${}\leq{}{{\mathit k}}_{{{\mathit \gamma}}}{}\leq{}$ 1.22.
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10
ABAZOV 2012AG combine new results with already published results on ${{\mathit W}}{{\mathit \gamma}}$ , ${{\mathit W}}{{\mathit W}}$ and ${{\mathit W}}{{\mathit Z}}$ production in order to determine the couplings with increased precision, superseding ABAZOV 2008R, ABAZOV 2011AC, ABAZOV 2009AJ, ABAZOV 2009AD. The 68$\%$ C.L. result for a formfactor cutoff of $\Lambda $ = 2 TeV is $\kappa _{{{\mathit \gamma}}}$ = $1.048$ ${}^{+0.106}_{-0.105}$.
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11
ABAZOV 2011AC study ${{\mathit W}}{{\mathit \gamma}}$ production in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at 1.96 TeV, with the ${{\mathit W}}$ decay products containing an electron or a muon. They select 196 (363) events in the electron (muon) mode, with a SM expectation of 190 (372) events. A likelihood fit to the photon $\mathit E_{T}$ spectrum above 15 GeV yields at 95$\%$ C.L. the result: 0.6 $<{{\mathit \kappa}_{{\gamma}}}<$ 1.4 for a formfactor ${{\mathit \Lambda}}$ = 2 TeV.
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12
CHATRCHYAN 2011M study ${{\mathit W}}{{\mathit \gamma}}$ production in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 7 TeV using 36$~$pb${}^{-1}$ ${{\mathit p}}{{\mathit p}}$ data with the ${{\mathit W}}$ decaying to electron and muon. The total cross section is measured for photon transverse energy ${{\mathit E}}{}^{{{\mathit \gamma}}}_{T}>$ 10 GeV and spatial separation from charged leptons in the plane of pseudo rapidity and azimuthal angle $\Delta {{\mathit R}}({{\mathit \ell}},{{\mathit \gamma}})>$ 0.7. The number of candidate (background) events is 452 ($228$ $\pm21$) for the electron channel and 520 ($277$ $\pm25$) for the muon channel. Setting other couplings to their standard model value, they derive a 95$\%$ CL limit of $-0.11$ $<$ ${{\mathit \kappa}_{{\gamma}}}<$ 2.04.
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13
AALTONEN 10K study ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$ with ${{\mathit W}}$ $\rightarrow$ ${{\mathit e}}$ / ${{\mathit \mu}}{{\mathit \nu}}$ . The $p_T$ of the leading (second) lepton is required to be $>$ 20 (10) GeV. The final number of events selected is 654 of which $320$ $\pm47$ are estimated to be background. The 95$\%$ C.L. interval is 0.37 $<$ ${{\mathit \kappa}}_{{{\mathit \gamma}}}<$ 1.72 for $\Lambda $ = 1.5 TeV and 0.43 $<$ ${{\mathit \kappa}}_{{{\mathit \gamma}}}<$ 1.65 for $\Lambda $ = 2 TeV.
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14
AARON 2009B study single-${{\mathit W}}$ production in ${{\mathit e}}{{\mathit p}}$ collisions at 0.3 TeV C.M. energy. They select 53 ${{\mathit W}}$ $\rightarrow$ ${{\mathit e}}$ $/$ ${{\mathit \mu}}$ events with a standard model expectation of $54.1$ $\pm7.4$ events. Fitting the transverse momentum spectrum of the hadronic recoil system they obtain a 95$\%$ C.L. limit of $-3.7<{{\mathit \kappa}_{{\gamma}}}<-1.5$ or 0.3$<{{\mathit \kappa}_{{\gamma}}}<$1.5, where the ambiguity is due to the quadratic dependence of the cross section to the coupling parameter.
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15
ABAZOV 2009AD study the ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit \ell}}{{\mathit \nu}}$ $~$2jet process arising in ${{\mathit W}}{{\mathit W}}$ and ${{\mathit W}}{{\mathit Z}}$ production. They select 12,473 (14,392) events in the electron (muon) channel with an expected di-boson signal of 436 (527) events. The results on the anomalous couplings are derived from an analysis of the $p_T$ spectrum of the 2-jet system and quoted at 68$\%$ C.L. and for a form factor of 2 TeV. This measurement is not used for obtaining the mean as it is for a specific form factor. The 95$\%$ confidence interval is 0.56 $<$ ${{\mathit \kappa}_{{\gamma}}}<$ 1.55.
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16
ABAZOV 2009AJ study the ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ 2 ${{\mathit \ell}}$2 ${{\mathit \nu}}$ process arising in ${{\mathit W}}{{\mathit W}}$ production. They select 100 events with an expected ${{\mathit W}}{{\mathit W}}$ signal of 65 events. An analysis of the $p_T$ spectrum of the two charged leptons leads to 95$\%$ C.L. limits of 0.46 $<$ ${{\mathit \kappa}_{{\gamma}}}<$ 1.83, for a form factor $\Lambda $ = 2 TeV.
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17
ABAZOV 2008R use 0.7 fb${}^{-1}$ ${{\mathit p}}{{\overline{\mathit p}}}$ data at $\sqrt {s }$ = 1.96 TeV to select 263 ${{\mathit W}}{{\mathit \gamma}}{+}$ ${{\mathit X}}$ events, of which 187 constitute signal, with the ${{\mathit W}}$ decaying into an electron or a muon, which is required to be well separated from a photon with $\mathit E_{T}>$ 9 GeV. A likelihood fit to the photon $\mathit E_{T}$ spectrum yields a 95$\%$ CL limit 0.49 $<\kappa _{\gamma }<$ 1.51 with other couplings fixed to their Standard Model values.
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18
ABDALLAH 2008C determine this triple gauge coupling from the measurement of the spin density matrix elements in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit W}^{+}}{{\mathit W}^{-}}$ $\rightarrow$ ( ${{\mathit q}}{{\mathit q}}$) ( ${{\mathit \ell}}{{\mathit \nu}}$), where ${{\mathit \ell}}$ = ${{\mathit e}}$ or ${{\mathit \mu}}$. Values of all other couplings are fixed to their standard model values.
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19
AALTONEN 2007L set limits on anomalous TGCs using the $p_T({{\mathit W}}$) distribution in ${{\mathit W}}{{\mathit W}}$ and ${{\mathit W}}{{\mathit Z}}$ production with the ${{\mathit W}}$ decaying to an electron or muon and the ${{\mathit Z}}$ to 2 jets. Setting other couplings to their standard model value, the 95$\%$ C.L. limits are 0.54 $<{{\mathit \kappa}_{{\gamma}}}<$ 1.39 for a form factor scale $\Lambda $ = 1.5 TeV.
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20
ABAZOV 2006H study ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit W}}{{\mathit W}}$ production with a subsequent decay ${{\mathit W}}$ ${{\mathit W}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit \nu}_{{e}}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}$ , ${{\mathit W}}$ ${{\mathit W}}$ $\rightarrow$ ${{\mathit e}^{\pm}}{{\mathit \nu}_{{e}}}{{\mathit \mu}^{\mp}}{{\mathit \nu}_{{\mu}}}$ or ${{\mathit W}}$ ${{\mathit W}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \nu}_{{\mu}}}{{\mathit \mu}^{-}}{{\overline{\mathit \nu}}_{{\mu}}}$ . The 95$\%$ C.L. limit for a form factor scale $\Lambda $ = 1 TeV is $\text{- 0.05}<\kappa _{\gamma }<$2.29, fixing $\lambda _{\gamma }$=0. With the assumption that the ${{\mathit W}}{{\mathit W}}{{\mathit \gamma}}$ and ${{\mathit W}}{{\mathit W}}{{\mathit Z}}$ couplings are equal the 95$\%$ C.L. one-dimensional limit ($\Lambda $ = 2 TeV) is 0.68 $<\kappa <$ 1.45.
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21
ABAZOV 2005J perform a likelihood fit to the photon $\mathit E_{T}$ spectrum of ${{\mathit W}}{{\mathit \gamma}}$ $+$ X events, where the ${{\mathit W}}$ decays to an electron or muon which is required to be well separated from the photon. For $\Lambda $ = 2.0 TeV the 95$\%$ CL limits are $0.12$ $<$ ${{\mathit \kappa}_{{\gamma}}}$ $<$ 1.96. In the fit $\lambda _{{{\mathit \gamma}}}$ is kept fixed to its Standard Model value.
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22
ABREU 2001I combine results from ${{\mathit e}^{+}}{{\mathit e}^{-}}$ interactions at 189 GeV leading to ${{\mathit W}^{+}}{{\mathit W}^{-}}$ , ${{\mathit W}}{{\mathit e}}{{\mathit \nu}_{{e}}}$ , and ${{\mathit \nu}}{{\overline{\mathit \nu}}}{{\mathit \gamma}}$ final states with results from ABREU 1999L at 183 GeV. The 95$\%$ confidence interval is $0.87<{{\mathit \kappa}_{{\gamma}}}<1.68$.
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23
BREITWEG 2000 search for ${{\mathit W}}$ production in events with large hadronic $p_T$. For $p_T>$20 GeV, the upper limit on the cross section gives the 95$\%$CL limit $-3.7<{{\mathit \kappa}_{{\gamma}}}<2.5$ (for $\lambda _{\gamma }$=0).
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24
ABBOTT 1999I perform a simultaneous fit to the ${{\mathit W}}{{\mathit \gamma}}$ , ${{\mathit W}}$ ${{\mathit W}}$ $\rightarrow$ dilepton, ${{\mathit W}}{{\mathit W}}$ / ${{\mathit W}}$ ${{\mathit Z}}$ $\rightarrow$ ${{\mathit e}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ , ${{\mathit W}}{{\mathit W}}$ / ${{\mathit W}}$ ${{\mathit Z}}$ $\rightarrow$ ${{\mathit \mu}}{{\mathit \nu}}{{\mathit j}}{{\mathit j}}$ , and ${{\mathit W}}$ ${{\mathit Z}}$ $\rightarrow$ trilepton data samples. For $\Lambda $ = $2.0$ TeV, the 95$\%$CL limits are $0.75<{{\mathit \kappa}_{{\gamma}}}<1.39$.
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