Full-Coupled Channel Approach to Doubly Strange $s$-Shell Hypernuclei
| dc.creator | Nemura, H. | |
| dc.creator | Shinmura, S. | |
| dc.creator | Akaishi, Y. | |
| dc.creator | Myint, Khin Swe | |
| dc.date | 2004-07-10 | |
| dc.date | 2004-12-01 | |
| dc.date.accessioned | 2026-07-07T10:50:59Z | |
| dc.date.available | 2026-07-07T10:50:59Z | |
| dc.description | We describe {\it ab initio} calculations of doubly strange, $S=-2$, $s$-shell hypernuclei ($^4_{ΛΛ}$H, $^5_{ΛΛ}$H, $^5_{ΛΛ}$He and $^6_{ΛΛ}$He) as a first attempt to explore the few-body problem of the {\it full}-coupled channel scheme for these systems. The wave function includes $ΛΛ$, $ΛΣ$, $NΞ$ and $ΣΣ$ channels. Minnesota $NN$, D2$^\prime$ $YN$, and simulated $YY$ potentials based on the Nijmegen hard-core model, are used. Bound state solutions of these systems are obtained. We find that a set of phenomenological $B_8B_8$ interactions among the octet baryons in $S=0, -1$ and -2 sectors, which is consistent with all of the available experimental binding energies of $S=0, -1$ and -2 $s$-shell (hyper-)nuclei, can predict a particle stable bound state of $^4_{ΛΛ}$H. For $^5_{ΛΛ}$H and $^5_{ΛΛ}$He, $ΛN-ΣN$ and $ΞN-ΛΣ$ potentials enhance the net $ΛΛ-NΞ$ coupling, and a large $Ξ$ probability is obtained even for a weaker $ΛΛ-NΞ$ potential. | |
| dc.description | 4 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0407033 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0407033 | |
| dc.identifier | Phys.Rev.Lett.94:202502,2005 | |
| dc.identifier | doi:10.1103/PhysRevLett.94.202502 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/184714 | |
| dc.subject | Nuclear Theory | |
| dc.title | Full-Coupled Channel Approach to Doubly Strange $s$-Shell Hypernuclei | |
| dc.type | text |