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arxiv: 1010.0901 · v1 · pith:RQLTU7KJnew · submitted 2010-10-05 · ✦ hep-ph · hep-lat

Mass anomalous dimension and running of the coupling in SU(2) with six fundamental fermions

classification ✦ hep-ph hep-lat
keywords couplingmassrunninganomalousdimensionfermionfermionsfundamental
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We simulate SU(2) gauge theory with six massless fundamental Dirac fermions. By using the Schr\"odinger Functional method we measure the running of the coupling and the fermion mass over a wide range of length scales. We observe very slow running of the coupling and construct an estimator for the fermion mass anomalous dimension giving $0.135 <\gamma< 1.03$ in the region compatible with an IR fixed point.

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