The strong coupling from ALEPH tau decays
(2017) In Nuclear and Particle Physics Proceedings 282-284. p.144-148- Abstract
The strong coupling from ALEPH tau decays. We use the publically available non-strange spectral function from ALEPH tau decays to critically analyze the different determinations of αs(mτ2) that can be found in the literature and the numerical impact of their possible weaknesses. We also introduce some novel approaches. We find that perturbative uncertainties dominate. Our results with different approaches are very stable. Our final value is αs(mτ2)=0.328±0.013.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8c943d64-5dbd-4b11-9f65-794c067c7fe2
- author
- Rodríguez Sánchez, Antonio LU
- publishing date
- 2017-01-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- QCD, Strong Coupling, Tau Decays
- in
- Nuclear and Particle Physics Proceedings
- volume
- 282-284
- pages
- 5 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85016321112
- ISSN
- 2405-6014
- DOI
- 10.1016/j.nuclphysbps.2016.12.027
- language
- English
- LU publication?
- no
- id
- 8c943d64-5dbd-4b11-9f65-794c067c7fe2
- date added to LUP
- 2019-05-14 14:00:18
- date last changed
- 2022-03-10 03:10:58
@article{8c943d64-5dbd-4b11-9f65-794c067c7fe2, abstract = {{<p>The strong coupling from ALEPH tau decays. We use the publically available non-strange spectral function from ALEPH tau decays to critically analyze the different determinations of α<sub>s</sub>(m<sub>τ</sub><sup>2</sup>) that can be found in the literature and the numerical impact of their possible weaknesses. We also introduce some novel approaches. We find that perturbative uncertainties dominate. Our results with different approaches are very stable. Our final value is α<sub>s</sub>(m<sub>τ</sub><sup>2</sup>)=0.328±0.013.</p>}}, author = {{Rodríguez Sánchez, Antonio}}, issn = {{2405-6014}}, keywords = {{QCD; Strong Coupling; Tau Decays}}, language = {{eng}}, month = {{01}}, pages = {{144--148}}, publisher = {{Elsevier}}, series = {{Nuclear and Particle Physics Proceedings}}, title = {{The strong coupling from ALEPH tau decays}}, url = {{http://dx.doi.org/10.1016/j.nuclphysbps.2016.12.027}}, doi = {{10.1016/j.nuclphysbps.2016.12.027}}, volume = {{282-284}}, year = {{2017}}, }