Unfolding the Second Riemann sheet with Padé Approximants: hunting resonance poles
Abstract
Based on Padé Theory, a new procedure for extracting the pole mass and width of resonances is proposed. The method is systematic and provides a model-independent treatment for the prediction and the errors of the approximation.
- Publication:
-
IX International Conference on Quark Confinement and the Hadron Spectrum - QCHS IX
- Pub Date:
- May 2011
- DOI:
- 10.1063/1.3575021
- Bibcode:
- 2011AIPC.1343..334M
- Keywords:
-
- resonance;
- QCD;
- axiomatic field theory;
- quark models;
- 25.70.Ef;
- 12.38.Lg;
- 11.10.Cd;
- 12.39.Fe;
- Resonances;
- Other nonperturbative calculations;
- Axiomatic approach;
- Chiral Lagrangians