Even parity excitations of the nucleon in lattice QCD
arXiv:0705.0861 · doi:10.1103/PhysRevD.76.054510
Abstract
We study the spectrum of the even parity excitations of the nucleon in quenched lattice QCD. We extend our earlier analysis by including an expanded basis of nucleon interpolating fields, increasing the physical size of the lattice, including more configurations to enhance statistics and probing closer to the chiral limit. With a review of world lattice data, we conclude that there is little evidence of the Roper resonance in quenched lattice QCD.
arXiv comment10 pages, 4 figures, 1 table
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Cited by in corpus (16)
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- Charmed baryon spectrum from lattice QCD near the physical point
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- Isolating the Roper Resonance in Lattice QCD
- The mass of the Delta resonance in a finite volume: fourth-order calculation
- The Positive-Parity Baryon Spectrum and the Role of Hybrid Baryons
- Roper State from Overlap Fermions
- Baryons and Chiral Symmetry
- Hard hadron spectroscopy
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- Baryon structure from Lattice QCD
- Numerical analysis of a baryon and its dilatation modes in holographic QCD
- Understanding the structure of nucleon excitations from their wavefunctions