The strong coupling from ALEPH tau decays

Antonio Rodríguez Sánchez

doi:10.1016/j.nuclphysbps.2017.03.049

The strong coupling from ALEPH tau decays

Antonio Rodríguez Sánchez

Research output: Contribution to journal › Article › peer-review

Abstract

We analyze some of the different determinations of α_s(m_τ ²) that can be found in the literature and the numerical impact of their possible weaknesses with the publicly available non-strange spectral function from ALEPH tau decays. We also introduce some novel approaches. We find very stable results and uncertainties dominated by the perturbative part. Our final value is α_s(m_τ ²)=0.328±0.013.

Original language	English
Pages (from-to)	81-84
Number of pages	4
Journal	Nuclear and Particle Physics Proceedings
Volume	287-288
DOIs	https://doi.org/10.1016/j.nuclphysbps.2017.03.049
Publication status	Published - 2017 Jun 1
Externally published	Yes

Subject classification (UKÄ)

Subatomic Physics

Free keywords

QCD
Strong Coupling
Tau Decays

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10.1016/j.nuclphysbps.2017.03.049

Cite this

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title = "The strong coupling from ALEPH tau decays",

abstract = "We analyze some of the different determinations of αs(mτ 2) that can be found in the literature and the numerical impact of their possible weaknesses with the publicly available non-strange spectral function from ALEPH tau decays. We also introduce some novel approaches. We find very stable results and uncertainties dominated by the perturbative part. Our final value is αs(mτ 2)=0.328±0.013.",

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author = "{Rodr{\'i}guez S{\'a}nchez}, Antonio",

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doi = "10.1016/j.nuclphysbps.2017.03.049",

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AB - We analyze some of the different determinations of αs(mτ 2) that can be found in the literature and the numerical impact of their possible weaknesses with the publicly available non-strange spectral function from ALEPH tau decays. We also introduce some novel approaches. We find very stable results and uncertainties dominated by the perturbative part. Our final value is αs(mτ 2)=0.328±0.013.

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KW - Strong Coupling

KW - Tau Decays

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VL - 287-288

SP - 81

EP - 84

JO - Nuclear and Particle Physics Proceedings

JF - Nuclear and Particle Physics Proceedings

ER -

The strong coupling from ALEPH tau decays

Abstract

Subject classification (UKÄ)

Free keywords

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