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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/68407700:21340/22:00362725

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

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 periodika

Physical Review C

ISSN

2469-9985

e-ISSN

2469-9993

Svazek periodika

106

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

065201

Kód UT WoS článku

000908377300007

EID výsledku v databázi Scopus

2-s2.0-85143654679