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AbstractAbstract
[en] New results of a bubble chamber study of the reaction K-p → ω Λ are presented at 7 incident momenta between 1.934 and 2.516 GeV/c. An energy dependent partial-wave analysis in the C.M. energy range 2070-2436 MeV including these new data, confirms the coupling of the G7 Λ (2100) to this channel and yields evidence for the existence of a new resonant state D3 or P3 Λ (2325). A semi (energy independent) partial-wave analysis is also carried out, using all available data from the threshold of the K-p → ω Λ reaction up to 2436 MeV. This supplies clear and unambiguous evidence for the contribution of the known P3 Λ (1860) and the above proposed D3 Λ (2325) to the ω Λ channel. The SU (6) classification of these 2 resonant states is also discussed
[fr]
De nouveaux resultats experimentaux sont presentes pour la reaction K-p → ω Λ a 7 impulsions incidentes regulierement espacees entre 1,934 et 2,516 GeV/c. Une analyse en ondes partielles dependante de l'energie faite a l'aide de ces nouvelles donnees confirme le couplage de la resonance G7 Λ (2100) au canal ω Λ et permet de deceler l'existence d'une nouvelle resonance D3 ou P3 Λ (2325). Une analyse en ondes partielles semi-independante de l'energie est aussi developpee du seuil jusqu'a l'energie maximum 2436 MeV. Elle suggere fortement la contribution de la resonance P3 Λ(1860) dans la region du seuil et confirme nettement l'existence de la resonance D3Λ(2325) trouvee plus haut. La classification de ces 2 resonances dans le cadre des symetries unitaires est aussi discuteeOriginal Title
Etude de la reaction K-p → ω Λ entre le seuil et 2436 MeV d'energie dans le centre de masse
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Source
May 1978; 136 p; These (D. es S.).
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Report
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Thesis/Dissertation
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