| Autor: |
Wrońska, A., Magiera, A., Przygoda, W., Piscicchia, K., Bazzi, M., Belloti, G., Bragadireanu, A. M., Bosnar, D., Butt, A. D., Cargnelli, M., Curceanu, C., Del Grande, R., De Paolis, L., Fabbietti, L., Fiorini, C., Ghio, F., Guaraldo, C., Hayano, R. S., Iliescu, M., Iwasaki, M. |
| Předmět: |
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| Zdroj: |
EPJ Web of Conferences; 2019, Vol. 199, pN.PAG-N.PAG, 6p |
| Abstrakt: |
The AMADEUS experiment at the DAΦNE collider of LNF-INFN deals with the investigation of the at-rest, or low-momentum, K− interactions in light nuclear targets, with the aim to constrain the low energy QCD models in the strangeness sector. The 0 step of the experiment consisted in the reanalysis of the 2004/2005 KLOE data, exploiting K− absorptions in H, 4He, 9Be and 12C, leading to the first invariant mass spectroscopic study with very low momentum (about 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 first measurement of the non-resonant transition amplitude | A K − n → Λ π − | $\left| {{A_{{K^ - }n \to \Lambda {\pi ^ - }}}} \right|$ at s = 33 MeV $\sqrt s = 33\,MeV$ below the K̄N threshold is presented, in relation with the Λ(1405) properties studies. The analysis procedure adopted in the serarch for K− multi-nucleon absorption cross sections and Branching Ratios will be also described. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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