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Del Grande, R.; Piscicchia, K.; Vazquez Doce, O.; Cargnelli, M.; Curceanu, C.; Fabbietti, L.; Marton, J.; Moskal, P.; Ramos, A.; Scordo, A.; Sirghi, D.; Skurzok, M.; Wycech, S.; Zmeskal, J.; Czerwinski, E.; De Leo, V.; Fermani, P.; Mandaglio, G.; Martini, M.; Raha, N.; Selce, A.; Silarski, M.
The European physical journal. C, Particles and fields, 03/2019, Letnik: 79, Številka: 3Journal Article
The determination of low-energy cross sections and branching ratios of the K - multi-nucleon absorption processes in Λ p and Σ 0 p final states performed by the AMADEUS collaboration is presented. Low momentum K - ( p K ≃ 127 MeV / c ) produced at the DA Φ NE collider are impinged on a Carbon target within the KLOE detector and the two and three nucleon absorption processes are disentangled by comparing the experimental data to phenomenological calculations. The Λ p spectra are interpreted in terms of K - multi-nucleon absorption processes; the possible contribution of a K - pp bound state is demonstrated to overlap with the two nucleon capture process, its absolute yield thus resulting indistinguishable.
