Effective λN-interaction and spectroscopy of low-lying states of 1p-shell hyernuclei

First results on 12ΛC production at DAΦNE

“…The ground state of 12 Λ C is assumed to be a single state. Indeed, it is known that it consists of a (1 − , 2 + ) doublet, but theoretical calculations predict splittings of 70 keV [24], 80 keV [25] and 140 keV [26] between them, one order of magnitude smaller than the present instrumental resolution. The peak at about 0.…”

Shell-model description of Λ hypernuclei

“…Fetisov [3] has come to different conclusions using a particular form of zerorange ΛNN interaction. In the following sections, we consider how the new γ-ray data affects the parametrizations of the ΛN effective interaction put forward by MGDD [4] and by FMZE [5]. From this purely phenomenological point of view, the spin-dependence for a Λ in a 0s orbit interacting with a p-shell core is specified by four radial integrals, conventionally denoted by ∆, S Λ , S N , and T associated with the operators …”

Shape and Energy Spectra of Λ Hypernuclei in the Framework of Skyrme–Hartree–Fock Model

“…Theoretically, the study of Λ hypernuclei has made important progress and various models have been developed to describe the properties of such systems. For light Λ hypernuclei, besides the shell-model calculations [3,4] which interpret the results of γ-ray experiments [5], the N-body cluster model [6] and the antisymmetrized molecular dynamics (AMD) method [7] reproduce the energy spectra and transition probabilities very well. Although the N-body cluster model is very successful to study p-shell hypernuclei [6,8,9] and even double-Λ hypernuclei [10], the dimensionality of Jacobi coordinates makes it difficult to describe Λ hypernuclei beyond the p shell.…”