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Precision determination of alpha(S)(M-Z) using an unbiased global NLO parton set

Abstract:

We determine the strong coupling αs from a next-to-leading order analysis of processes used for the NNPDF2.1 parton determination, which includes data from neutral and charged current deep-inelastic scattering, Drell-Yan and inclusive jet production. We find αs(MZ)=0.1191±0.0006exp, where the uncertainty includes all statistical and systematic experimental uncertainties, but not purely theoretical uncertainties, which are expected to be rather larger. We study the dependence of the results on...

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Publication status:
Published

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Journal:
PHYSICS LETTERS B
Volume:
701
Issue:
3
Pages:
346-352
Publication date:
2011-07-11
DOI:
ISSN:
0370-2693
URN:
uuid:ffb02cc7-8574-4303-a9ba-f37ee4a24ed2
Source identifiers:
477520
Local pid:
pubs:477520

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