𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Three-body models of the 6ΛΛHe and 9ΛBe hypernuclei with non-local interactions

✍ Scribed by M. Theeten; D. Baye; P. Descouvemont

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
234 KB
Volume
753
Category
Article
ISSN
0375-9474

No coin nor oath required. For personal study only.

✦ Synopsis

A three-body model involving non-local interactions is developed in configuration space. It is based on a hyperspherical-harmonics expansion and the Lagrange-mesh method. The 6 ΛΛ He and 9 Λ Be hypernuclei are studied as three-body αΛΛ and ααΛ systems. Recently proposed quark-model based ΛN and ΛΛ interactions are used. A non-local Λα interaction is obtained by folding the ΛN interaction with a Gaussian α density. Various phenomenological αα interactions are employed. The results agree within 1 keV with recent Faddeev calculations in momentum space. Energies and radii of 6 ΛΛ He and 9 Λ Be are compared with a purely local model. The B(E2) between the 9 Λ Be bound states is also calculated. The role of non-locality is discussed.

📜 SIMILAR VOLUMES

Cluster models of 6ΛΛHe and 9ΛBe hypernu
Cluster models of 6ΛΛHe and 9ΛBe hypernuclei
✍ I. Filikhin; A. Gal; V.M. Suslov 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 236 KB

Configuration space Faddeev calculations are performed for the binding energy of 6 ΛΛ He and 9 Λ Be bound states, here considered as αΛΛ and ααΛ clusters respectively, in order to study the dependence of the calculated binding energy on the αΛ potential input. For 6 ΛΛ He, using realistic interactio