Tau polarisation at LEP

Authors
Citation
R. Alemany, Tau polarisation at LEP, NUCL PH B-P, 76, 1999, pp. 55-68
Citations number
10
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
ISSN journal
09205632 → ACNP
Volume
76
Year of publication
1999
Pages
55 - 68
Database
ISI
SICI code
0920-5632(199904)76:<55:TPAL>2.0.ZU;2-Z
Abstract
The measurements of the tau polarisation at LEP I are reviewed. Special emp hasis is given to the new preliminary results presented at this conference. The ALEPH collaboration has studied the polarisation as a function of the polar angle using a new method based on the tau direction reconstruction an d fully exploiting the angular correlations. A second traditional approach, based on the single tau decays has been also developed. The DELPHI collabo ration has also studied the full data sample using an individual tau decay method and an inclusive hadronic selection. The results from the four exper iments are presented with discussion of the compatibility among the methods and experiments.