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Non-perturbative quark mass renormalisation and running in Nf=3 QCD

AuthorsCampos, Isabel ; Fritzsch, P.; Pena, C.; Preti, D.; Ramos, A.; Vladikas, A.
KeywordsQuark masses
Lattice QCD
Issue DateMay-2018
PublisherSpringer Nature
CitationThe European Physical Journal C 78: 387 (2018)
AbstractWe determine from first principles the quark mass anomalous dimension in Nf=3 QCD between the electroweak and hadronic scales. This allows for a fully non-perturbative connection of the perturbative and non-perturbative regimes of the Standard Model in the hadronic sector. The computation is carried out to high accuracy, employing massless O (a) -improved Wilson quarks and finite-size scaling techniques. We also provide the matching factors required in the renormalisation of light quark masses from lattice computations with O (a) -improved Wilson fermions and a tree-level Symanzik improved gauge action. The total uncertainty due to renormalisation and running in the determination of light quark masses in the SM is thus reduced to about 1% .
Publisher version (URL)https://doi.org/10.1140/epjc/s10052-018-5870-5
Appears in Collections:(IFCA) Artículos
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