QUASI-BOUND STATES OF ETA-NUCLEUS SYSTEMS

Citation
Sa. Rakityansky et al., QUASI-BOUND STATES OF ETA-NUCLEUS SYSTEMS, Physical review. C. Nuclear physics, 53(5), 1996, pp. 2043-2047
Citations number
28
Categorie Soggetti
Physics, Nuclear
ISSN journal
05562813
Volume
53
Issue
5
Year of publication
1996
Pages
2043 - 2047
Database
ISI
SICI code
0556-2813(1996)53:5<2043:QSOES>2.0.ZU;2-6
Abstract
The position and movement of poles of the amplitude for elastic eta-me son scattering off the light nuclei H-2, H-3, He-3, and He-4 are studi ed. It is found that, within the existing uncertainties for the elemen tary eta N interaction, all these nuclei can support a quasibound stat e. The values of the eta-nucleus scattering lengths corresponding to t he critical eta N interaction that produces a quasibound state are giv en.