Published April 2012
| Version v1
Journal article
Issues in Determining αs from Hadronic τ Decay and Electroproduction Data
Creators
- 1. Departament de Física and IFAE, Universitat Autonòma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
- 2. Ludwig-Maximilians-Universität München, Fakultät für Physik, Arnold Sommerfeld Center for Theoretical Physics, D80333 München (Germany)
- 3. Departament de Física Teòrica and IFIC Universitat de València-CSIC, E-46071 València (Spain)
- 4. Department of Physics and Astronomy, San Francisco State University, San Francisco, CA 94132 (United States)
- 5. ICREA, IFAE, Universitat Autonòma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
- 6. CSSM, University of Adelaide, Adelaide, SA Australia 5005 (Australia)
- 7. Dept. Math and Statistics, York University, Toronto, ON Canada M3J 1P3 (Canada)
- 8. Departament de Física, Universitat Autonòma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
Description
We discuss some key issues associated with duality-violating and non-perturbative OPE contributions to the theoretical representations of light quark current-current two-point functions and relevant to precision determinations of αs from hadronic τ decay and electroproduction cross-section data. We demonstrate that analyses with an explicit representation of duality-violating effects are required to bring theoretical errors in such extractions under control, motivating the accompanying paper in these proceedings, which presents the results of such an analysis.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.nuclphysbps.2012.02.032Additional details
Identifiers
- DOI
- 10.1016/j.nuclphysbps.2012.02.032;
- arXiv
- arXiv:1112.4202v1;
- PII
- S0920-5632(12)00049-7;
Publishing Information
- Journal Title
- Nuclear Physics. B, Proceedings Supplements
- Journal Volume
- 225-227
- Journal Page Range
- p. 153-156
- ISSN
- 0920-5632
- CODEN
- NPBSE7
Conference
- Title
- International workshop on e"+e"- collisions from #phi# to #psi#
- Acronym
- PHIPSI11
- Dates
- 19-22 Sep 2011
- Place
- Novosibirsk (Russian Federation)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43112628
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CROSS SECTIONS; D QUARKS; DUALITY; ELECTROPRODUCTION; EXTRACTION; HADRONIC PARTICLE DECAY; U QUARKS
- Descriptors DEC
- BASIC INTERACTIONS; DECAY; ELECTROMAGNETIC INTERACTIONS; FERMIONS; INTERACTIONS; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; QUARKS; SEPARATION PROCESSES
Optional Information
- Copyright
- Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.