THRESHOLD SCATTERING OF THE ETA-MESON OFF LIGHT-NUCLEI

Authors
RAKITYANSKY SA SOFIANOS SA SANDHAS W BELYAEV VB
Citation
Sa. Rakityansky et al., THRESHOLD SCATTERING OF THE ETA-MESON OFF LIGHT-NUCLEI, Physics letters. Section B, 359(1-2), 1995, pp. 33-38
Citations number
30
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
359
Issue
1-2
Year of publication
1995
Pages
33 - 38
Database
ISI
SICI code
0370-2693(1995)359:1-2<33:TSOTEO>2.0.ZU;2-O
Abstract
The scattering lengths of eta-meson collisions with light nuclei H-2, H-3, He-3, and He-4 are calculated on the basis of few-body equations in coherent approximation. It is found that the eta-nucleus scattering length depends strongly on the number of nucleons and the range param eter. By taking into account the off-shell behavior of the eta N ampli tude, the eta alpha scattering length increases considerably.