Chirally motivated K̅ N amplitudes for in-medium applications
- NázevTitle
- Chirally motivated K̅ N amplitudes for in-medium applicationsChirally motivated K̅ N 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
- KonferenceConference
- ECT* Workshop on Strange Hadronic Matter (Trento, Italy, 2011-09-26)
- DOIDOI
- 10.1016/j.nuclphysa.2012.01.028
- Časopis / citaceJournal / citation
- Nuclear Physics A 881, 115-126 (2012) · ISSN 0375-9474
- RokYear
- 2012
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Fundamentální experimenty ve fyzice mikrosvětaFundamental Experiments in Physics of Microworld; Chirální model interakcí hadronůChiral Model for Hadron Interactions
- CitovánoCited by
- 113 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://arxiv.org/pdf/1112.0917
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
A new fit of a chirally motivated coupled-channel 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 K̅ -nuclear optical potentials obtained microscopically from threshold K̅ N interactions and the phenomenological deep ones deduced from kaonic atoms data. The impact on the A-dependence of the Λ-hypernuclear formation rates measured in reactions with stopped kaons is discussed too.
A new fit of a chirally motivated coupled-channel 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 K̅ -nuclear optical potentials obtained microscopically from threshold K̅ N interactions and the phenomenological deep ones deduced from kaonic atoms data. The impact on the A-dependence of the Λ-hypernuclear formation rates measured in reactions with stopped kaons is discussed too.