Thomas Appelquist, Richard C. Brower, Michael I. Buchoff, Michael Cheng, Saul D. Cohen, George T. Fleming, Joe Kiskis, Meifeng Lin, Heechang Na, Ethan T. Neil, James C. Osborn, Claudio Rebbi, David Schaich, Chris Schroeder, Gennady Voronov, Pavlos Vranas
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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http://arxiv.org/abs/1204.6000
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