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
- DOIDOI
- 10.1016/j.nuclphysa.2012.01.028
- Časopis / citaceJournal / citation
- Nuclear Physics A. 2012, 881(SI), 115-126. ISSN 0375-9474.
- RokYear
- 2012
- JazykLanguage
- eng
- WoSWoS
- 000304238700011
- ScopusScopus
- 2-s2.0-84860341507
- RIVRIV
- RIV/68407700:21670/12:00204566!RIV13-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-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.