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arXiv · 1010.0901

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

Francis Bursa·Luigi Del Debbio·Liam Keegan·Claudio Pica·Thomas Pickup
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Abstract

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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Francis Bursa, Luigi Del Debbio, Liam Keegan, Claudio Pica, Thomas Pickup. 2010-10-05. Mass anomalous dimension and running of the coupling in SU(2) with six fundamental fermions. https://arxiv.org/abs/1010.0901

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