Chirally motivated <i>K</i>?<i>N</i> amplitudes for in-medium applications
Result description
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 K?-nuclear optical potentials obtained microscopically from threshold K?N interactions and the phenomenological deep ones deduced from kaonic atoms data. The impact on the A-dependence of the ?-hypernuclear formation rates measured in reactions with stopped kaons is discussed too.
Keywords
chiral modelkaon-nucleon amplitudenuclear medium effectsoptical potentialhypernuclei
The result's identifiers
Result code in IS VaVaI
Result on the web
http://www.sciencedirect.com/science/article/pii/S0375947412000590
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Chirally motivated K?N amplitudes for in-medium applications
Original language description
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 K?-nuclear optical potentials obtained microscopically from threshold K?N interactions and the phenomenological deep ones deduced from kaonic atoms data. The impact on the A-dependence of the ?-hypernuclear formation rates measured in reactions with stopped kaons is discussed too.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Result continuities
Project
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nuclear Physics A
ISSN
0375-9474
e-ISSN
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Volume of the periodical
881
Issue of the periodical within the volume
SI
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
12
Pages from-to
115-126
UT code for WoS article
000304238700011
EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BF - Elementary particle theory and high energy physics
Year of implementation
2012