SuperdeformedΛhypernuclei with antisymmetrized molecular dynamics

Abstract

The response to the addition of a hyperon is investigated for the deformed states such as superdeformation in 41

Impurity Effects in Λ Hypernuclei

“…Generally, the overlap I decreases as β increases, because the Λ distribution is not significantly deformed even if it is coupled to a rather deformed core [11]. In Figure 1(j)-(l), we see the decrease of I as β increases.…”

“…As shown in Figure 5(a), 11 Be has a positive parity state as the ground state, which is called "parity inversion" [22,23]. In the present study, the AMD calculation successfully describes the parity inversion of the ground state in 11 Be as shown in Figure 5(a). It is well known that the low-lying states of the Be isotopes have a 2α cluster core and valence neutrons occupying the molecular orbits (π and σ orbits) around the core [24].…”

“…Here, let us briefly discuss the changes of the excitation spectra in the neutron-rich hypernucleus 12 Λ Be caused by the difference of B Λ depending on the deformations of the low-lying states. First, let us discuss the structure of the core nucleus 11 Be. As shown in Figure 5(a), 11 Be has a positive parity state as the ground state, which is called "parity inversion" [22,23].…”

“…First, let us discuss the structure of the core nucleus 11 Be. As shown in Figure 5(a), 11 Be has a positive parity state as the ground state, which is called "parity inversion" [22,23]. In the present study, the AMD calculation successfully describes the parity inversion of the ground state in 11 Be as shown in Figure 5(a).…”

“…The YNG-ESC08c interactions (see the appendix of Ref. [11]) have been employed as the Λ-nucleon interaction V ΛN , which was derived from the latest version of the ESC interaction developed by the Nijmegen group [12]. The Coulomb interaction is approximated by the sum of seven Gaussians.…”