Is there a bound Lambda-n-n ?
Nuclear Theory
2015-06-19 v3 High Energy Physics - Phenomenology
Nuclear Experiment
Abstract
The HypHI Collaboration at GSI argued recently for a (Lambda-n-n) bound state from the observation of its two-body (t + pi-) weak-decay mode. We derive constraints from several hypernuclear systems, in particular from the A=4 hypernuclei with full consideration of (Lambda N <--> Sigma N) coupling, to rule out a bound (Lambda-n-n).
Cite
@article{arxiv.1404.5855,
title = {Is there a bound Lambda-n-n ?},
author = {Avraham Gal and Humberto Garcilazo},
journal= {arXiv preprint arXiv:1404.5855},
year = {2015}
}
Comments
12 pages, 4 tables; v2--extended (i) discussion of Table 4 with a new Eq.(7), (ii) discussion of CSB effects; v3 matches published version