Stable bound states of N’s, Λ’s and Ξ’s
Fuente:
Redalyc
Enregistré dans:
| Auteur principal: | |
|---|---|
| Format: | Artículo científico |
| Langue: | en |
| Publié: |
Sociedad Mexicana de Física A.C.
2017
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1876444100873420800 |
|---|---|
| author | H. Garcilazo |
| author_facet | H. Garcilazo |
| contents | Stable bound states of N’s, Λ’s and Ξ’s H. Garcilazo A. Valcarce J. Vijande Física, Astronomía y Matemáticas Baryon Faddeev equations Baryon interactions variational approaches We review our recent work about the stability of strange few-body systems containing N ’s, Λ ’s, and Ξ ’s. We make use of local central Yukawa-type Malfliet-Tjon interactions reproducing the low-energy parameters and phase shifts of the nucleon-nucleon system and the latest updates of the hyperon-nucleon and hyperon-hyperon ESC08c Nijmegen potentials. We solve the three- and four-body bound-state problems by means of Faddeev equations and a generalized Gaussian variational method, respectively. The hypertriton, Λ np ( I ) J P = (1 / 2)1 / 2 + , is bound by 144 keV; the recently discussed Λ nn ( I ) J P = (1 / 2)1 / 2 + system is unbound, as well as the ΛΛ nn ( I ) J P = (1)0 + system, being just above threshold. Our results indicate that the Ξ NN , ΞΞ N and ΞΞ NN systems with maximal isospin might be bound. 2017 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57051630003 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.5 Vol.63 |
| format | Artículo científico |
| id | redalyc_57051630003 |
| institution | Redalyc |
| language | en |
| publishDate | 2017 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Stable bound states of N’s, Λ’s and Ξ’s H. Garcilazo Física, Astronomía y Matemáticas Baryon Faddeev equations Baryon interactions variational approaches Stable bound states of N’s, Λ’s and Ξ’s H. Garcilazo A. Valcarce J. Vijande Física, Astronomía y Matemáticas Baryon Faddeev equations Baryon interactions variational approaches We review our recent work about the stability of strange few-body systems containing N ’s, Λ ’s, and Ξ ’s. We make use of local central Yukawa-type Malfliet-Tjon interactions reproducing the low-energy parameters and phase shifts of the nucleon-nucleon system and the latest updates of the hyperon-nucleon and hyperon-hyperon ESC08c Nijmegen potentials. We solve the three- and four-body bound-state problems by means of Faddeev equations and a generalized Gaussian variational method, respectively. The hypertriton, Λ np ( I ) J P = (1 / 2)1 / 2 + , is bound by 144 keV; the recently discussed Λ nn ( I ) J P = (1 / 2)1 / 2 + system is unbound, as well as the ΛΛ nn ( I ) J P = (1)0 + system, being just above threshold. Our results indicate that the Ξ NN , ΞΞ N and ΞΞ NN systems with maximal isospin might be bound. 2017 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57051630003 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.5 Vol.63 |
| title | Stable bound states of N’s, Λ’s and Ξ’s |
| topic | Física, Astronomía y Matemáticas Baryon Faddeev equations Baryon interactions variational approaches |
| url | https://www.redalyc.org/articulo.oa?id=57051630003 |