Results on tau polarisation
6 channels are in common: Pion, Rho, electron, muon, a1 in 3 prongs
called a1, a1 with two pi0 called here a0.
In addition LAL has done an acollinearity study and EP an inclusive
pion analysis (h npi0)
LAL results
| Channel | Ae | stat | syst | Atau | stat | syst
|
|---|
| Pi | 17.36 | 1.35 | 0.13 | 15.49 | 1.01 | 0.68
|
| Rho | 15.04 | 1.06 | 0.078 | 13.70 | 0.79 | 0.60
|
| a1 | 15.78 | 2.07 | 0.017 | 14.96 | 1.55 | 1.6
|
| a0 | 12.63 | 2.31 | 0.068 | 15.97 | 1.73 | 1.9
|
| el | 16.96 | 2.92 | 0.15 | 14.98 | 2.18 | 0.82
|
| mu | 12.05 | 2.78 | 0.24 | 14.45 | 2.13 | 1.1
|
| acol. | 19.41 | 5.02 | 0.2 | 13.34 | 3.83 | 1.8
|
| Total | 15.52 | 0.71 | 0.10 | 14.59 | 0.53 | 0.39
|
Au
pi 16.34 0.79
rho 14.33 0.63
a1 15.40 1.22
a0 14.11 1.37
e 15.77 1.78
mu 13.44 1.70
acol 15.87 3.05
sin2tw = .23112 +- .00061
EP results
| Channel | Ae | err. tot. | Atau | err. tot.
|
|---|
| Pi | 15.774 | 1.328 | 15.257 | 1.099
|
| Rho | 14.294 | 1.135 | 13.935 | 0.949
|
| a1 | 13.124 | 2.452 | 14.938 | 2.047
|
| a0 | 14.908 | 3.156 | 17.047 | 2.815
|
| el | 13.286 | 3.283 | 12.894 | 2.580
|
| mu | 12.260 | 2.808 | 13.152 | 2.244
|
| Pi. inc. | 14.836 | 1.204 | 15.137 | 1.129
|
| Total | 14.56 | 0.75 | 14.45 | 0.63
|
sin2tw = .23178 +- .00061
Even though it has no clear meaning to separate in a combination
the statistical and systematic parts we can assess the level of the systematic
contribution to be 0.32 on Atau and 0.17 on Ae.
Comparison between analyses for the 6 common channels
Atau
The red crosses are LAL and the blue ones EP.
Ae
The red crosses are LAL and the blue ones EP.