First application of a microscopic K–NN absorption model in calculations of kaonic atoms

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F22%3A00567594" target="_blank" >RIV/61389005:_____/22:00567594 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/22:00362725
Result on the web
<a href="https://doi.org/10.1103/PhysRevC.106.065201" target="_blank" >https://doi.org/10.1103/PhysRevC.106.065201</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.106.065201" target="_blank" >10.1103/PhysRevC.106.065201</a>

Result language
angličtina
Original language name
First application of a microscopic K–NN absorption model in calculations of kaonic atoms
Original language description
Strong interaction energy shifts and widths in kaonic atoms are calculated for the first time using microscopic K-N + K-NN potentials derived from K-N scattering amplitudes constructed within SU(3) chiral coupled -channels models of meson-baryon interactions. The in-medium modifications of the free-space amplitudes due to the Pauli correlations are taken into account. The K-N + K-NN potentials evaluated for 23 nuclear species are confronted with kaonic atoms data. The description of the data significantly improves when the K-NN absorption is included. To get x(2) as low as for the K-N+ phenomenological multinucleon potential an additional phenomenological term, accounting for K- - 3N(4N) processes, is still needed. However, density dependence of this phenomenological term points out some deficiencies in the microscopic potentials, and further improvements of the applied model are thus desirable. The calculated branching ratios for K-N and K-NN absorption channels in the C-12 +K- atom are in reasonable agreement with the old bubble chamber data, as well as with the latest data from the AMADEUS Collaboration.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10304 - Nuclear physics

Project
<a href="/en/project/GA19-19640S" target="_blank" >GA19-19640S: Study of Hadron Interactions, Production and Bound States</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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