| $\bf{<0.29}$ |
95 |
1 |
|
CDF |
| • • • We do not use the following data for averages, fits, limits, etc. • • • |
| $-0.06$ $\pm0.22$ $\pm0.12$ |
|
1 |
|
CDF |
| $<0.80$ |
95 |
2 |
|
CDF |
|
1
Based on 700 pb${}^{-1}$ of data at $\sqrt {s }$ = 1.96 TeV.
|
|
2
ACOSTA 2005D measures the ${{\mathit m}^{2}}_{ {{\mathit \ell}} {+} {{\mathit b}} }$ distribution in ${{\mathit t}}{{\overline{\mathit t}}}$ production events where one or both ${{\mathit W}}$'s decay leptonically to ${{\mathit \ell}}$ = ${{\mathit e}}$ or ${{\mathit \mu}}$, and finds a bound on the V+A coupling of the ${{\mathit t}}{{\mathit b}}{{\mathit W}}$ vertex. By assuming the SM value of the longitudinal ${{\mathit W}}$ fraction ${{\mathit F}_{{0}}}$ = B( ${{\mathit t}}$ $\rightarrow$ ${{\mathit W}_{{0}}}{{\mathit b}}$ ) = 0.70, the bound on ${{\mathit F}}_{+}$ is obtained. If the results are combined with those of AFFOLDER 2000B, the bounds become ${{\mathit F}}_{V+A}$ $<$ 0.61 (95$\%$ CL) and ${{\mathit F}_{{+}}}$ $<$ 0.18 (95 $\%$CL), respectively. Based on $109$ $\pm7$ pb${}^{-1}$ of data at $\sqrt {s }$ = 1.8 TeV (run I).
|
|
