Towards Order alpha_s^4 Accuracy in tau-decays

dc.creatorBaikov, P. A.
dc.creatorChetyrkin, K. G.
dc.creatorKühn, J. H.
dc.date2002-12-19
dc.date.accessioned2026-07-07T12:52:28Z
dc.date.available2026-07-07T12:52:28Z
dc.descriptionRecently computed terms of orders O(α_s^4 n_f^2) in the perturbative series for the tau decay rate, and similar (new) strange quark mass corrections, are used to discuss the validity of various optimization schemes. The results are then employed to arrive at improved predictions for the complete terms order O(α_s^4) and O(α_s^5) in the massless limit as well as for terms due to the strange quark mass. Phenomenological implications are presented.
dc.description14 pages, REVTeX4. The complete paper is also available via the www at http://www-ttp.physik.uni-karlsruhe.de/Preprints/
dc.identifierhttps://arxiv.org/abs/hep-ph/0212299
dc.identifierhttp://arxiv.org/abs/hep-ph/0212299
dc.identifierPhys.Rev.D67:074026,2003
dc.identifierdoi:10.1103/PhysRevD.67.074026
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/223304
dc.subjectHigh Energy Physics - Phenomenology
dc.titleTowards Order alpha_s^4 Accuracy in tau-decays
dc.typetext

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