S-WAVE RESONANCE COUPLED-CHANNEL APPROACH TO THE REACTIONS PI(-)-]ETA+N AND K-+P-]ETA+LAMBDA, AND A DETERMINATION OF THE ETA-N AND ETA-LAMBDA SCATTERING LENGTHS(P)

Authors
ABAEV VV NEFKENS BMK
Citation
Vv. Abaev et Bmk. Nefkens, S-WAVE RESONANCE COUPLED-CHANNEL APPROACH TO THE REACTIONS PI(-)-]ETA+N AND K-+P-]ETA+LAMBDA, AND A DETERMINATION OF THE ETA-N AND ETA-LAMBDA SCATTERING LENGTHS(P), Physical review. C. Nuclear physics, 53(1), 1996, pp. 385-389
Citations number
21
Categorie Soggetti
Physics, Nuclear
Journal title
Physical review. C. Nuclear physics → ACNP
ISSN journal
05562813
Volume
53
Issue
1
Year of publication
1996
Pages
385 - 389
Database
ISI
SICI code
0556-2813(1996)53:1<385:SRCATT>2.0.ZU;2-4
Abstract
The total cross sections of the reactions pi(-)+rho-->eta+n and K-+rho -->eta+Lambda near threshold have been calculated in an S-wave resonan ce coupled-channel approach. The eta N scattering length is [0.621+/-0 .040 +i(0.306+/-0.034)] fm and the eta Lambda scattering length is [0. 64+/-0.29+i(0.80+/-0.30)] fm. The large value of the eta Lambda scatte ring length leads us to speculate on the possible existence of eta-mes ic hypernuclei.