46 citations · 398 across the 24 of their papers we have counts for
5 papers · 1 filter
Introducing Pietarinen expansion method into single-channel pole extraction problem
Alfred Svarc, Mirza Hadzimehmedovic, Hedim Osmanovic +3
We present a new approach to quantifying pole parameters of single-channel processes based on a Laurent expansion of partial-wave T-matrices in the vicinity of the real axis. Inste…
Poles, the only true resonant-state signals, are extracted from a worldwide collection of partial wave amplitudes using only one, well controlled pole-extraction method
M. Hadžimehmedović, S. Ceci, A. Švarc +2
Each and every energy dependent partial-wave analysis is parameterizing the pole positions in a procedure defined by the way how the continuous energy dependence is implemented. Th…
Stability of the Zagreb Carnegie-Mellon-Berkeley model
H. Osmanović, S. Ceci, A. Švarc +2
In ref. [1] we have used the Zagreb realization of Carnegie-Melon-Berkeley coupled-channel, unitary model as a tool for extracting pole positions from the world collection of parti…
Multichannel Anomaly of the Resonance Pole Parameters Resolved
Sasa Ceci, Jugoslav Stahov, Alfred Svarc +2
Inspired by anomalies which the standard scattering matrix pole-extraction procedures have produced in a mathematically well defined coupled-channel model, we have developed a new…
The dependence of the "experimental" pion-nucleon sigma term on higher partial waves
J. Stahov
A dependence of the value of the pion-nucleon sigma term on higher partial waves is discussed. Two recent predictions of a high value of sigma term are scrutinezed. It has been con…