K− multi-nucleon absorption cross sections and branching ratios in Λp and Σ0p final states

The determination of low-energy cross sections and branching ratios of the K− multi-nucleon absorption processes in Λp and Σ0p final states performed by the AMADEUS collaboration is presented. Low momentum K− (pK≃ 127 MeV/c) produced at the DAΦNE collider are impinged on a Carbon target within the K...

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Detalles Bibliográficos
Autores: Grande, R. del, Piscicchia, K., Vazquez Doce, O., Cargnelli, M., Curceanu, C., Fabbietti, L., Marton, J., Moskal, P., Ramos Gómez, Àngels, Scordo, Alessandro, Sirghi, Diana Laura, Skurzok, M., Wycech, S., Zmeskal, J., Czerwinski, E., Leo, V. de, Fermani, P., Mandaglio, G., Martini, M., Raha, N., Selce, A., Silarski, Michal
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/129744
Acceso en línea:https://hdl.handle.net/2445/129744
Access Level:acceso abierto
Palabra clave:Estructura nuclear
Kaons
Nuclear structure
Descripción
Sumario:The determination of low-energy cross sections and branching ratios of the K− multi-nucleon absorption processes in Λp and Σ0p final states performed by the AMADEUS collaboration is presented. Low momentum K− (pK≃ 127 MeV/c) produced at the DAΦNE 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 Λp spectra are entirely 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.

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