Phenomenological Analysis of a Dimension-Two Operator in QCD and its Impact on $α_{s}(M_τ)$

Details Phenomenological Analysis of a Dimension-Two Operator in QCD and its Impact on $α_{s}(M_τ)$ Phenomenological Analysis of a Dimension-Two Operator in QCD and its Impact on $α_{s}(M_τ)$

1994-11-18

arxiv.org/abs/hep-ph/9411331v1

Phys.Lett. B345 (1995) 291-295

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages and 4 figures (not included). LATEX file

Scientific paper

10.1016/0370-2693(94)01626-N

Fits to the ARGUS data on hadronic decays of the tau-lepton, which determine the vector and axial-vector spectral functions, are used in order to determine the size of a dimension $d=2$ term in the Operator Product Expansion. Constraints from the first Weinberg sum rule (in the chiral limit) are enforced in order to reduce the uncertainty of this determination. Results for the $d=2$ operator are consistent with a quadratic dependence on $\Lambda_{QCD}$. The impact of this term on the extraction of $\alpha_{s}(M_{\tau})$ is assessed.

Affiliated with

Also associated with

No associations

Rating

Phenomenological Analysis of a Dimension-Two Operator in QCD and its Impact on $α_{s}(M_τ)$ 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 Phenomenological Analysis of a Dimension-Two Operator in QCD and its Impact on $α_{s}(M_τ)$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phenomenological Analysis of a Dimension-Two Operator in QCD and its Impact on $α_{s}(M_τ)$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-657155