Carregant...
Fitxers
Tipus de document
ArticleVersió
Versió publicadaData de publicació
Tots els drets reservats
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/10981
Chiral unitary model for kaonic atoms
Títol de la revista
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
We study kaonic atoms over the periodic table using a kaon self-energy in the nuclear medium derived from the SU(3) chiral unitary model. This model is quite successful in reproducing the scattering amplitude of meson meson and the strangeness
S
=
−
1
meson baryon reactions. In particular the properties of the
Λ
(
1405
)
resonance are well reproduced. In the nuclear medium the properties of this resonance are appreciably modified, and consequently the kaon nucleon scattering amplitudes, leading to an attractive kaon nucleus self-energy for densities higher than
ρ
0
/
25.
With this interaction we are able to reproduce shifts and widths of kaonic atoms over the periodic table. We also investigate the region of deeply bound kaonic nuclear states which appear with very large widths in medium and heavy nuclei. Some of the deep atomic states, still unobserved, appear with narrower widths than the separation between levels, which makes them eligible for experimental observation. To this end, we make some estimates of the rates of formation in the
(
K
−
,
γ
)
reaction.
Matèries
Matèries (anglès)
Citació
Citació
HIRENZAKI, S., OKUMURA, Y., TOKI, H., OSET BAGUENA, Eulogio, RAMOS GÓMEZ, Àngels. Chiral unitary model for kaonic atoms. _Physical Review C_. 2000. Vol. 61, núm. 5, pàgs. 055205-1-055205-6. [consulta: 24 de gener de 2026]. ISSN: 0556-2813. [Disponible a: https://hdl.handle.net/2445/10981]