Approaching Conformality with Ten Flavors

Details Approaching Conformality with Ten Flavors Approaching Conformality with Ten Flavors

2012-04-26

arxiv.org/abs/1204.6000v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 3 figures. Submitted to Physical Review Letters

Scientific paper

We present first results for lattice simulations, on a single volume, of the low-lying spectrum of an SU(3) Yang-Mills gauge theory with ten light fermions in the fundamental representation. Fits to the fermion mass dependence of various observables are found to be globally consistent with the hypothesis that this theory is within or just outside the strongly-coupled edge of the conformal window, with mass anomalous dimension approximately equal to 1 over the range of scales simulated. We stress that we cannot rule out the possibility of spontaneous chiral-symmetry breaking at scales well below our infrared cutoff. We discuss important systematic effects, including finite-volume corrections, and consider directions for future improvement.

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