On K−-nuclear interaction, K−-nuclear quasibound states and K− atoms

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F22%3A00568503" target="_blank" >RIV/61389005:_____/22:00568503 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1051/epjconf/202227107003" target="_blank" >https://doi.org/10.1051/epjconf/202227107003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/202227107003" target="_blank" >10.1051/epjconf/202227107003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On K−-nuclear interaction, K−-nuclear quasibound states and K− atoms

Popis výsledku v původním jazyce

The K−N potentials derived from SU(3) chiral coupled-channel meson-baryon interaction models fail to describe kaonic atom data. It was shown that K− single-nucleon potentials have to be supplemented by a phenomenological K− multi-nucleon optical potential in order to achieve good description of the data. Moreover, only the Prague, Kyoto-Munich and Barcelona models are able to account for the experimental data on K− atoms and K− singlenucleon absorption ratios from bubble chamber experiments. A considerable imaginary part coming from the multi-nucleon absorption ruled out existence of narrow K−-nuclear quasibound states in nuclei with A ≥ 6.nnWe have developed a microscopic model for the K−NN absorption in nuclear matter. The absorption was described as a meson-exchange process and the primary K−N interaction strength was derived from the state-of-the-art chiral models. The medium modifications of the K−N scattering amplitudes due to the Pauli exclusion principle were taken into account. The model was applied in calculations of kaonic atoms for the first time. The description of the data improved significantly when the two nucleon absorption was considered.

Název v anglickém jazyce

On K−-nuclear interaction, K−-nuclear quasibound states and K− atoms

Popis výsledku anglicky

The K−N potentials derived from SU(3) chiral coupled-channel meson-baryon interaction models fail to describe kaonic atom data. It was shown that K− single-nucleon potentials have to be supplemented by a phenomenological K− multi-nucleon optical potential in order to achieve good description of the data. Moreover, only the Prague, Kyoto-Munich and Barcelona models are able to account for the experimental data on K− atoms and K− singlenucleon absorption ratios from bubble chamber experiments. A considerable imaginary part coming from the multi-nucleon absorption ruled out existence of narrow K−-nuclear quasibound states in nuclei with A ≥ 6.nnWe have developed a microscopic model for the K−NN absorption in nuclear matter. The absorption was described as a meson-exchange process and the primary K−N interaction strength was derived from the state-of-the-art chiral models. The medium modifications of the K−N scattering amplitudes due to the Pauli exclusion principle were taken into account. The model was applied in calculations of kaonic atoms for the first time. The description of the data improved significantly when the two nucleon absorption was considered.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

<a href="/cs/project/GA19-19640S" target="_blank" >GA19-19640S: Studium interakcí hadronů, jejich produkce a vázaných stavů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

EPJ Web of Conferences

ISBN

—

ISSN

2100-014X

e-ISSN

2100-014X

Počet stran výsledku

8

Strana od-do

07003

Název nakladatele

EDP Science

Místo vydání

Les Ulis

Místo konání akce

Prague

Datum konání akce

27. 6. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—