Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2008-10-22
PoS LATTICE2008:099,2008
Physics
High Energy Physics
High Energy Physics - Lattice
7 pages, Talk presented at The XXVI International Symposium on Lattice Field Theory, LATTICE 2008, July 14 - 19, 2008, William
Scientific paper
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. A discussion on the Roper is included.
Alexandrou Constantia
Papanicolas C. N.
Stiliaris E.
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