Probing the Region of Massless Quarks in Quenched Lattice QCD using Wilson Fermions

Details Probing the Region of Massless Quarks in Quenched Lattice QCD using Wilson Fermions Probing the Region of Massless Quarks in Quenched Lattice QCD using Wilson Fermions

1997-11-16

arxiv.org/abs/hep-lat/9711029v2

Nucl.Phys. B518 (1998) 319-336

Physics

High Energy Physics

High Energy Physics - Lattice

22 pages, LaTeX file, uses elsart.sty, includes 11 figures A typographical error in one reference has been fixed

Scientific paper

10.1016/S0550-3213(98)00104-7

We study the spectrum of $H(m)=\gamma_5 W(-m)$ with $W(m)$ being the Wilson-Dirac operator on the lattice with bare mass equal to $m$. The background gauge fields are generated using the SU(3) Wilson action at $\beta=5.7$ on an $8^3\times 16$ lattice. We find evidence that the spectrum of $H(m)$ is gapless for $1.02 < m < 2.0$, implying that the physical quark is massless in this whole region.

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