5-9 October 2020
Online
Europe/Moscow timezone
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Particle configurations in $NN\bar K$ quasi-bound state

5 Oct 2020, 19:45
15m
Poster Server (Discord)

Poster Server

Discord

Poster Nuclear physics Poster session

Speaker

Igor Filikhin (North Carolina Central University)

Description

Three-body $NN\bar K$ model for the "$ppK^-$" quasi-bound kaonic cluster is considered on the basis of the configuration space Faddeev equations. A single-channel approach is used taking into account the difference of nucleon and kaon masses as well as the charge independence breaking of nucleon-nucleon interaction. ​Two sets of the particle configurations, $ ppK^-$, $np \bar {K^0}$ and $nn{\bar K}^0$, $npK^-$, are presented as charged and neutral systems according to total isospin projections. We formulate an $AAB$ model for each configuration. ​
The calculations are performed with $NN$ and $N\bar K$ phenomenological isospin dependent potentials. The mass and energy spectra are calculated. The mass deference effect was found to be not significant, less then 1 MeV.
The Coulomb force contribution of the $ppK^-$ configuration is computed. The attraction effect of the $NN$ interaction ​is shown
and exchange term related to permutation of identical particles is evaluated.​ The spatial distribution of the particles in the systems is given.

Primary authors

Igor Filikhin (North Carolina Central University) Dr. Vladimir Suslov (North Carolina Central University) Prof. Branislav Vlahovic (North Carolina Central University)

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