Chirally motivated $\bar{K}N$ amplitudes for in-medium applications
- NázevTitle
- Chirally motivated $\bar{K}N$ amplitudes for in-medium applicationsChirally motivated $\bar{K}N$ amplitudes for in-medium applications
- Druh výsledkuResult type
- Ostatní výsledekOther result
- AutořiAuthors
- A. Cieplý, J. Smejkal
- Časopis / citaceJournal / citation
- arXiv.org. 2011, 2011(12),
- RokYear
- 2011
- JazykLanguage
- eng
- RIVRIV
- RIV/68407700:21670/11:00190658!RIV12-MSM-21670___
- ProjektProject
- Fundamentální experimenty ve fyzice mikrosvětaFundamental Experiments in Physics of Microworld; Chirální model interakcí hadronůChiral Model for Hadron Interactions
AbstraktAbstract
A new fit of a chirally motivated coupled-channels model for meson-baryon interactions is presented including the recent SIDDHARTA data on the 1s level characteristics of kaonic hydrogen. The kaon-nucleon amplitudes generated by the model are fully consistent with our earlier studies. We argue that a sharp increase of the real part of the in-medium $K^{-}p$ amplitude at subthreshold energies provides a link between the shallow $\bar{K}$-nuclear optical potentials obtained microscopically from threshold $\bar{K}N$ interactions and the phenomenological deep ones deduced from kaonic atoms data. The impact on the $A$-dependence of the $\Lambda$-hypernuclear formation rates measured in reactions with stopped kaons is discussed too.
A new fit of a chirally motivated coupled-channels model for meson-baryon interactions is presented including the recent SIDDHARTA data on the 1s level characteristics of kaonic hydrogen. The kaon-nucleon amplitudes generated by the model are fully consistent with our earlier studies. We argue that a sharp increase of the real part of the in-medium $K^{-}p$ amplitude at subthreshold energies provides a link between the shallow $\bar{K}$-nuclear optical potentials obtained microscopically from threshold $\bar{K}N$ interactions and the phenomenological deep ones deduced from kaonic atoms data. The impact on the $A$-dependence of the $\Lambda$-hypernuclear formation rates measured in reactions with stopped kaons is discussed too.