$\bar{K}NN$ quasi-bound state and the $\bar{K}N$ interaction: coupled-channel Faddeev calculations of the $\bar{K}NN - πΣN$ system
| dc.creator | Shevchenko, N. V. | |
| dc.creator | Gal, A. | |
| dc.creator | Mareš, J. | |
| dc.creator | Révai, J. | |
| dc.date | 2007-06-29 | |
| dc.date | 2007-09-27 | |
| dc.date.accessioned | 2026-07-07T10:56:31Z | |
| dc.date.available | 2026-07-07T10:56:31Z | |
| dc.description | Coupled-channel three-body calculations of an $I=1/2$, $J^π=0^-$ $\bar{K}NN$ quasi-bound state in the $\bar{K}NN - πΣN$ system were performed and the dependence of the resulting three-body energy on the two-body $\bar{K}N - πΣ$ interaction was investigated. Earlier results of binding energy $B_{K^-pp} \sim 50 -70$ MeV and width $Γ_{K^-pp} \sim 100$ MeV are confirmed [N.V. Shevchenko {\it et al.}, Phys. Rev. Lett. {\bf 98}, 082301 (2007)]. It is shown that a suitably constructed energy-independent complex $\bar{K}N$ potential gives a considerably shallower and narrower three-body quasi-bound state than the full coupled-channel calculation. Comparison with other calculations is made. | |
| dc.description | 22 pages, 7 figures, 4 tables; minor corrections, accepted for publication in Phys. Rev. C | |
| dc.identifier | https://arxiv.org/abs/0706.4393 | |
| dc.identifier | http://arxiv.org/abs/0706.4393 | |
| dc.identifier | Phys.Rev.C76:044004,2007 | |
| dc.identifier | doi:10.1103/PhysRevC.76.044004 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/186440 | |
| dc.subject | Nuclear Theory | |
| dc.title | $\bar{K}NN$ quasi-bound state and the $\bar{K}N$ interaction: coupled-channel Faddeev calculations of the $\bar{K}NN - πΣN$ system | |
| dc.type | text |