Naslov
Nucleon resonances and processes involving strange particles

Autori
Ceci, Saša ; Švarc, Alfred ; Zauner, Branimir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the NSTAR2004: Workshop on the Physics of Excited Baryons / Bocquet, J. ; Kusnetzov, V. ; Rebreyand, D. - Singapur : London : München : Ženeva : Tokyo : Hong Kong : Taipei : Peking : Šangaj : Tianjin : Chennai : World Scientific Publishing, 2005, 337-341

Skup
NSTAR2004: Workshop on the Physics of Excited Baryons

Mjesto i datum
Grenoble, Francuska, 24.03.2004. - 27.03.2004

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
nucleon resonances; strange particles

Sažetak
An existing single resonance model with S11, P11 and P13 Breit-Wiegner resonances in the s-channel has been re-applied to the old piN - K Lambda data. It has been shown that the standard set of resonant parameters fails to reproduce the shape of the differential cross section. The resonance parameter determination has been repeated retaining the most recent knowledge about the nucleon resonances. The extracted set of parameters has confirmed the need for the strong contribution of a P11(1710) resonance. The need for any significant contribution of the P13 resonance has been eliminated. Assuming that the Baker. et al data is a most reliable one, the P11 resonance can not but be quite narrow. It emerges as a good candidate for the non-strange counter partner of the established pentaquark anti-decuplet.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA