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Quenched Light Hadron Spectrum
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abstract
We present results of a large-scale simulation for the flavor non-singlet light hadron spectrum in quenched lattice QCD with the Wilson quark action. Hadron masses are calculated at four values of lattice spacing in the range $a \approx$ 0.1 - 0.05 fm on lattices with a physical extent of 3 fm at five quark masses corresponding to $m_\pi/m_\rho \approx 0.75$ - 0.4. The calculated spectrum in the continuum limit shows a systematic deviation from experiment, though the magnitude of deviation is contained within 11%. Results for decay constants and light quark masses are also reported.
Forward citations
Cited by 1 Pith paper
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Physical interpretation of the 2s excitation of the nucleon
The 2s radial excitation of the nucleon is found to stay near 2 GeV when meson-baryon couplings are suppressed by quenching, supporting its association with the N(1710) and N(1880) resonances rather than the Roper.
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