Bayesian approach to the first excited nucleon state in lattice QCD

Abstract

We present preliminary results from the first attempt to reconstruct the spectral function in the nucleon and $\Delta$ channels from lattice QCD data using the maximum entropy method (MEM). An advantage of the MEM analysis is to enable us to access information of the excited state spectrum. Performing simulations on two lattice volumes, we confirm the large finite size effect on the first excited nucleon state in the lighter quark mass region.

Lattice2002(spectrum), Latex with espcrc2.sty, 3 pages, 3 figures

References in corpus (2)

• Maximum Entropy Analysis of the Spectral Functions in Lattice QCD
• Negative-parity Baryon Masses using an O(a)-improved Fermion Action

Cited by in corpus (8)

• $J/\psi$ and ${\eta }_c$ in the Deconfined Plasma from Lattice QCD
• Excited hadrons on the lattice: Baryons
• Matrix elements of unstable states
• Spectral Analysis of Excited Nucleons in Lattice QCD with Maximum Entropy Method
• Spatially improved operators for excited hadrons on the lattice
• Isolating Excited States of the Nucleon in Lattice QCD
• Excited nucleons with chirally improved fermions
• Extraction of the resonance parameters at finite times