2015/06/24 by Masahiro Isaka, Masaaki Kimura, Isaka, Masahiro +1
Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #nucl-th
paper · pdf · doi:10.48550/arxiv.1506.07238
9 pages, 4 figures
arxiv created 2015/06/26 · arxiv updated 2015/06/29
The low-lying structure of 10ΛBe and 11ΛBe are investigated within the framework of the antisymmetrized molecular dynamics. We focus on the modifications of the excitation spectra and dynamical changes of the 2α cluster structure caused by a Λ particle as an impurity in these hypernuclei. It is found that the excitation energies of well-pronounced cluster states are largely shifted up by the addition of a Λ particle. Furthermore, we also find that the 2α cluster structure is significantly changed in the excited states, whereas it is almost unchanged in the ground states.