A novel method for the determination of hadron excited states in Lattice QCD applied to the nucleon

Understand

A novel method for the precise identification and determination of the energies that contribute in the spectral decomposition of lattice correlators is presented.

• The method is based on statistical concepts and it relies heavily on simulation techniques.
• The $\eta_c$ correlator is analyzed within this method and the results obtained are compared to a previous analysis based on Bayesian statistics.
• An analysis of the nucleon local two-point correlators leads to the identification of the excited states in the positive and negative channels.