342 research outputs found
Dirac spectral density and mass anomalous dimension in 2+1 flavor QCD
We compute the Dirac spectral density of QCD in a wide range of eigenvalues
by using a stochastic method. We use 2+1 flavor lattice ensembles generated
with Mobius domain-wall fermion at three lattice spacings ( fm) to estimate the continuum limit. The discretization effect can be
minimized by a generalization of the valence domain-wall fermion. The spectral
density at relatively high eigenvalues can be matched with perturbation theory.
We compare the lattice results with the perturbative expansion available to
.Comment: 8 pages, 4 figures. Proceedings of the 35th International Symposium
on Lattice Field Theory, 18-24 June 2017, Granada, Spai
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