Single- and two-nucleon antikaon absorption in nuclear matter with chiral meson-baryon interactions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00523760" target="_blank" >RIV/61389005:_____/20:00523760 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevC.101.035204" target="_blank" >https://doi.org/10.1103/PhysRevC.101.035204</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.101.035204" target="_blank" >10.1103/PhysRevC.101.035204</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Single- and two-nucleon antikaon absorption in nuclear matter with chiral meson-baryon interactions

Popis výsledku v původním jazyce

We developed a microscopic model for antikaon absorption on two nucleons in nuclear matter. The absorption is described within a meson-exchange picture and the primary K- N interaction strength is derived from state-of-the-art chiral coupled-channels meson-baryon interaction models. We took into account the medium modification of the K- N scattering amplitudes due to the Pauli correlations. We derived the K- NN as well as K-N optical potentials as functions of nuclear matter density including the real part of the K- NN potential. We calculated the K- single- and two-nucleon absorption fractions and branching ratios for various mesonic and nonmesonic channels. We confirmed the crucial role of in-medium effects in our calculations. Our results are in very good agreement with available experimental data from old bubble chamber experiments as well as with the latest results from the AMADEUS collaboration.

Název v anglickém jazyce

Single- and two-nucleon antikaon absorption in nuclear matter with chiral meson-baryon interactions

Popis výsledku anglicky

We developed a microscopic model for antikaon absorption on two nucleons in nuclear matter. The absorption is described within a meson-exchange picture and the primary K- N interaction strength is derived from state-of-the-art chiral coupled-channels meson-baryon interaction models. We took into account the medium modification of the K- N scattering amplitudes due to the Pauli correlations. We derived the K- NN as well as K-N optical potentials as functions of nuclear matter density including the real part of the K- NN potential. We calculated the K- single- and two-nucleon absorption fractions and branching ratios for various mesonic and nonmesonic channels. We confirmed the crucial role of in-medium effects in our calculations. Our results are in very good agreement with available experimental data from old bubble chamber experiments as well as with the latest results from the AMADEUS collaboration.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

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

—

Svazek periodika

101

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

035204

Kód UT WoS článku

000519701800005

EID výsledku v databázi Scopus

2-s2.0-85082826080