QCD predictions for the τ hadronic width: Determination of α s( M τ2)
Abstract
The total τ hadronic width can be accurately calculated using analyticity and the operator product expansion. The theoretical analysis of this observable is updated to include all available perturbative and non-perturbative corrections. The experimental determination of α s( M τ2) and its actual uncertainties are discussed.
- Publication:
-
Nuclear Physics B Proceedings Supplements
- Pub Date:
- March 1995
- DOI:
- 10.1016/0920-5632(95)00097-S
- arXiv:
- arXiv:hep-ph/9412273
- Bibcode:
- 1995NuPhS..39..326P
- Keywords:
-
- High Energy Physics - Phenomenology
- E-Print:
- 15 pages, LaTex: uses epsfig, twoside, fleqn, espcrc2 (included at end, find % CUT HERE %), 1 figure (included in separate uu file). Proc. QCD94