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Strong running coupling at ¿ and Z 0 mass scales from lattice QCD

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Strong running coupling at ¿ and Z 0 mass scales from lattice QCD.pdf (771.9Kb)
URI
http://hdl.handle.net/10433/1043
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Authorship
De Soto, Feliciano; Blossier, B.; Boucaud, P.; Brinet, M.; Du, X.; [et al.]
Palabras clave
Lattice
Publication date
2012-06
Abstract
This Letter reports on the first computation, from data obtained in lattice QCD with u, d, s, and c quarks in the sea, of the running strong coupling via the ghost-gluon coupling renormalized in the momentum-subtraction Taylor scheme. We provide readers with estimates of ¿MS¯¯¯¯¯¯(m2¿) and ¿MS¯¯¯¯¯¯(m2Z) in very good agreement with experimental results. Including a dynamical c quark makes the needed running of ¿MS¯¯¯¯¯¯ safer.
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BIBLIOTECA CRAI  ©  2015 Universidad Pablo de Olavide
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