Role of Bare Propagator Poles in Phenomenological Dyson-Schwinger Type Models (CROSBI ID 144567)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Ceci, Saša ; Švarc, Alfred ; Zauner, Branimir
engleski
Role of Bare Propagator Poles in Phenomenological Dyson-Schwinger Type Models
The genesis of dressed meson-nucleon scattering matrix poles is presented. A possible scenario for the interrelation of bare and dressed baryon poles is shown by using a particular version of coupled-channel Dyson-Schwinger type model. These fndings are then applied to the Roper resonance, and the conclusion is drawn that it is dynamic in nature. A possible correlation between bare and dressed propagator poles on one side and the quantities of constituent quark model calculations on the other side is discussed.
coupled-channel methods; Dyson-Schwinger type equations; bare and dressed poles
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Podaci o izdanju
58 (1)
2008.
47-56
objavljeno
1434-6044
10.1140/epjc/s10052-008-0742-z