Chirally motivated amplitudes for in-medium applications
- NázevTitle
- Chirally motivated amplitudes for in-medium applicationsChirally motivated amplitudes for in-medium applications
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- A. Cieplý, J. Smejkal
- Klíčová slovaKeywords
- chiral model, kaon-nucleon amplitude, nuclear medium effects, optical potential, hypernuclei
- Časopis / citaceJournal / citation
- arXiv.org 2011(12) (2011)
- RokYear
- 2011
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Fundamentální experimenty ve fyzice mikrosvětaFundamental Experiments in Physics of Microworld; Chirální model interakcí hadronůChiral Model for Hadron Interactions
- Citace ke staženíDownload citation
- TXT · BibTeX
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 amplitude at subthreshold energies provides a link between the shallow -nuclear optical potentials obtained microscopically from threshold interactions and the phenomenological deep ones deduced from kaonic atoms data. The impact on the -dependence of the -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 amplitude at subthreshold energies provides a link between the shallow -nuclear optical potentials obtained microscopically from threshold interactions and the phenomenological deep ones deduced from kaonic atoms data. The impact on the -dependence of the -hypernuclear formation rates measured in reactions with stopped kaons is discussed too.