alpha_s at low Q^2 from e+e- and tau data
High Energy Physics - Experiment
2007-05-23 v1
Abstract
It has been shown in recent analyses by ALEPH [1] and OPAL [2] that precision QCD tests are possible with hadronic tau decays by comparing spectral moments of the hadronic decay ratio of the tau with QCD calculations. In principle e+e- data can be used in a similar manner by evaluating spectral moments of R. The current e+e- data is compared with the OPAL tau data and a prediction is made on the achievable accuracy of QCD tests with the projected precision of PEP-N [3].
Cite
@article{arxiv.hep-ex/0106011,
title = {alpha_s at low Q^2 from e+e- and tau data},
author = {Sven Menke},
journal= {arXiv preprint arXiv:hep-ex/0106011},
year = {2007}
}
Comments
Invited talk at e+e- Physics at Intermediate Energies Workshop, SLAC, Stanford, CA, 30 April - 2 May 2001, (M09) 6 pages, LaTeX, 3 eps figures