Even parity excitations of the nucleon in lattice QCD

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.

10 pages, 4 figures, 1 table

References in corpus (1)

• Excited hadrons on the lattice: Baryons

Cited by in corpus (10)

• Three particle quantization condition in a finite volume: 2. general formalism and the analysis of data
• Light Hadron Masses from Lattice QCD
• Three-particle quantization condition in a finite volume: 1. The role of the three-particle force
• Isolating the Roper Resonance in Lattice QCD
• The mass of the Delta resonance in a finite volume: fourth-order calculation
• Baryons and Chiral Symmetry
• Hard hadron spectroscopy
• The Hadron Spectrum from Lattice QCD
• Numerical analysis of a baryon and its dilatation modes in holographic QCD
• Understanding the structure of nucleon excitations from their wavefunctions