TRIPLE GAUGE COUPLINGS (TGC'S)
$\boldsymbol g{}^{{{\boldsymbol Z}}}_{5}$
INSPIRE search
This coupling is $\mathit CP$-conserving but $\mathit C$- and $\mathit P$-violating.
| $\bf{
-0.07 \pm0.09}$
|
OUR AVERAGE
Error includes scale factor of 1.1.
|
| $-0.04$ ${}^{+0.13}_{-0.12}$ |
9800 |
1 |
|
OPAL |
| $0.00$ $\pm0.13$ $\pm0.05$ |
7171 |
2 |
|
L3 |
| $-0.44$ ${}^{+0.23}_{-0.22}$ $\pm0.12$ |
1154 |
3 |
|
L3 |
| • • • We do not use the following data for averages, fits, limits, etc. • • • |
| $-0.31$ $\pm0.23$ |
|
4 |
|
THEO |
|
1
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 $-0.28$ $<$ $\mathit g{}^{Z}_{5}<+0.21$.
|
|
2
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 using the $WW$ $-$pair production sample. Each parameter is determined from a single$-$parameter fit in which the other parameters assume their Standard Model values.
|
|
3
ACCIARRI 1999Q study ${{\mathit W}}$-pair, single-${{\mathit W}}$, and single photon events.
|
|
4
EBOLI 2000 extract this indirect value of the coupling studying the non-universal one-loop contributions to the experimental value of the ${{\mathit Z}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ width ($\Lambda $=1 TeV is assumed).
|
|
| References: |
|
| EPJ C33 463 |
Measurement of Charged Current Tripple Gauge Boson Couplings using ${{\mathit W}}$ Pairs at LEP |
|
| PL B586 151 |
Measurement of Triple Gauge Boson Couplings of the ${{\mathit W}}$ Boson at LEP |
|
| MPL A15 1 |
Indirect Constraints on the Triple Gauge Boson Couplings from ${{\mathit Z}}$ $\rightarrow$ ${{\mathit b}}{{\overline{\mathit b}}}$ Partial Width: An Update |
|
| PL B467 171 |
Measurement of Triple-Gauge-Boson Couplings of the ${{\mathit W}}$ Boson at LEP |
|
