Published August 2014
| Version v1
Journal article
The strong coupling from tau decays without prejudice
Creators
- 1. Physik Department T31, Technische Universität München, James-Franck-Straße 1, D-85748 Garching (Germany)
- 2. Department of Physics and Astronomy, San Francisco State University, San Francisco, CA 94132 (United States)
- 3. Institut de Física d'Altes Energies, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
- 4. Institució Catalana de Recerca i Estudis Avançats (ICREA), IFAE, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
- 5. CSSM, University of Adelaide, Adelaide, SA 5005 Australia (Australia)
- 6. Department of Mathematics and Statistics, York University, Toronto, ON Canada M3J 1P3 (Canada)
- 7. Department of Physics, University of Wisconsin, Madison, WI 53706 (United States)
- 8. Department of Physics, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
Description
We review our recent determination of the strong coupling αs from the OPAL data for non-strange hadronic tau decays. We find that αs(mτ2)=0.325±0.018 using fixed-order perturbation theory, and αs(mτ2)=0.347±0.025 using contour-improved perturbation theory. At present, these values supersede any earlier determinations of the strong coupling from hadronic tau decays, including those from ALEPH data
Availability note (English)
Available from http://dx.doi.org/10.1016/j.nuclphysbps.2014.09.014Additional details
Identifiers
- DOI
- 10.1016/j.nuclphysbps.2014.09.014;
- PII
- S0920-5632(14)00145-5;
Publishing Information
- Journal Title
- Nuclear Physics. B, Proceedings Supplements
- Journal Volume
- 253-255
- Journal Page Range
- p. 56-59
- ISSN
- 0920-5632
- CODEN
- NPBSE7
Conference
- Title
- 12. international workshop on tau-lepton physics
- Acronym
- TAU2012
- Dates
- 17-21 Sep 2012
- Place
- Nagoya (Japan)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 46129280
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- HADRONS; PARTICLE DECAY; PERTURBATION THEORY; STRONG-COUPLING MODEL; TAU PARTICLES
- Descriptors DEC
- DECAY; ELEMENTARY PARTICLES; FERMIONS; HEAVY LEPTONS; LEPTONS; MATHEMATICAL MODELS; PARTICLE MODELS
Optional Information
- Copyright
- Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.