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Precision NNLO determination of alpha_s(M_Z) using an unbiased global parton set

We determine the strong coupling alpha_s at NNLO in perturbative QCD using the global dataset input to the NNPDF2.1 NNLO parton fit: data from neutral and charged current deep-inelastic scattering, Drell-Yan, vector boson production and inclusive jets. We find alpha_s(M_Z)=0.1173+- 0.0007 (stat), wh...

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Detalles Bibliográficos
Autores principales: Ball, Richard D., Bertone, Valerio, Del Debbio, Luigi, Forte, Stefano, Guffanti, Alberto, Latorre, Jose I., Lionetti, Simone, Rojo, Juan, Ubiali, Maria
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2011.11.053
http://cds.cern.ch/record/1389920