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Low-energy antikaon-nucleon/nuclei interaction studies by AMADEUS

Piscicchia, K.; Cargnelli, M.; Curceanu, C.; Del Grande, R.; Fabbietti, L.; Guaraldo, C.; Marton, J.; Moskal, P.; Scordo, A.; Silarski, M.; Sirghi, D.; Skurzok, M.; Tucaković, Ivana; Vazquez Doce, O.; Wycech, S.; Widmann, E.; Zmeskal, J. (2017) Low-energy antikaon-nucleon/nuclei interaction studies by AMADEUS. Acta physica Polonica B, 48 (10). pp. 1875-1880. ISSN 0587-4254

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The AMADEUS experiment deals with the investigation of the low energy kaon–nuclei hadronic interaction at the DAΦNE collider at LNF-INFN, which is fundamental to solve longstanding questions in the nonperturbative strangeness QCD sector. AMADEUS step 0 consisted in the reanalysis of the 2004/2005 KLOE data, exploiting K^− absorptions in H, ^4He, ^9Be and ^{; ; 12}; ; C, leading to the first invariant mass spectroscopy study with very low-momentum (100 MeV) in-flight K^− captures. With AMADEUS step 1, a dedicated pure carbon target was implemented in the central region of the KLOE detector, providing a high statistic sample of pure at-rest K^− nuclear interaction. The results obtained in the analyses of the hyperon–pion correlated events, searching for the resonant shapes of Y states, will be described.

Item Type: Article
Uncontrolled Keywords: Chiral dynamics ; Bound state ; K^- absorption
Subjects: NATURAL SCIENCES > Physics
Divisions: Division for Marine and Enviromental Research
Depositing User: Sofija Konjević
Date Deposited: 21 Aug 2018 15:15
DOI: 10.5506/APhysPolB.48.1875

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