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Measurement of the Tau Polarisation at LEP I
The polarisation of $\tau$'s produced in Z decay is measured using 160 pb$^{-1}$ of data accumulated at LEP by the ALEPH detector between 1990 and 1995. The variation of the polarisation with polar angle yields the two parameters ${\cal A}_e = 0.1504 \pm 0.0068 $ and ${\cal A}_{\tau} = 0.1451 \...
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| Lenguaje: | eng |
| Publicado: |
2001
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| Acceso en línea: | http://cds.cern.ch/record/532800 |