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Testing the nature of the Λ(1520)-resonance in proton-induced production |
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| Authors: | L. Roca C. Hanhart E. Oset U. -G. Meißner |
| Affiliation: | 1. Departamento de F?sica, Universidad de Murcia, E-30100, Murcia, Spain 2. Forschungszentrum Jülich, Institut für Kernphysik (Theorie), D-52425, Jülich, Germany 3. Departamento de F?sica Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigación de Paterna, Aptdo. 22085, 46071, Valencia, Spain 4. HISKP (Th), Universit?t Bonn, Nu?allee 14-16, D-53115, Bonn, Germany |
| Abstract: | The Λ(1520)-resonance has been recently studied in a unitarized coupled-channel formalism with πΣ(1385), KΞ(1530), ˉN and πΣ as constituents blocks. We provide a theoretical study of the predictions of this model in physical observables of the pp → pK+K-p and pp → pK+π0π0Λ reactions. In particular, we show that the ratio between the π0π0Λ and K-p mass distributions can provide valuable information on the ratio of the couplings of the Λ(1520)-resonance to πΣ(1385) and ˉN than the theory predicts. Calculations are done for energies which are accessible in an experimental facility like COSY at Jülich or the developing CSR facility at Lanzhou. |
| Keywords: | 14.20.-c Baryons (including antiparticles) 13.75.-n Hadron-induced low- and intermediate-energy reactions and scattering |
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