Simple But Efficient Tests of QCD from Tau Decays$^{*)}$

Details Simple But Efficient Tests of QCD from Tau Decays$^{*)}$ Simple But Efficient Tests of QCD from Tau Decays$^{*)}$

1994-04-04

arxiv.org/abs/hep-ph/9404211v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

revised and updated version of hep-ph 9404211. CERN-TH 7188/94 (4 figures available on requests) Talk given at the Symposium {

Scientific paper

We review the determinations of the QCD coupling $\alpha_s$ from the inclusive and exclusive modes of $\tau$-decays. The most recent $\tau$-data provide the average value $ \alpha_ s \left(M^2_\tau \right)\simeq 0.347\pm 0.030 $ corresponding to $ \alpha_ s \left(M^2_Z \right) \simeq 0.121\pm 0.003 \pm 0.001.$ The values of the QCD vacuum condensates extracted from the inclusive weighted-moment distributions are consistent with the ones from QCD spectral sum rules. Accurate estimates and further precision tests should be reached in the next $\tau$C/B-factory machines. The $M_\tau$-stability test from the $ e^+e^- \longrightarrow I=1 $ hadron data is also discussed.

Affiliated with

Also associated with

No associations

Rating

Simple But Efficient Tests of QCD from Tau Decays$^{*)}$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Simple But Efficient Tests of QCD from Tau Decays$^{*)}$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simple But Efficient Tests of QCD from Tau Decays$^{*)}$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-82987