Electric multipole response of the halo nucleus ${}^6$He

Abstract

The role of different continuum components in the weakly-bound nucleus ${}^6$He is studied by coupling unbound spd-waves of ${}^5$He by means of simple pairing contact-delta interaction. The results of our previous investigations in a model space containing only p-waves, showed the collective nature of the ground state and allowed the calculation of the electric quadrupole transitions. We extend this simple model by including also sd-continuum neutron states and we investigate the electric monopole, dipole and octupole response of the system for transitions to the continuum, discussing the contribution of different configurations.

22 pages, 10 figures

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Cited by in corpus (15)

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• Exploring two-neutron halo formation in the ground-state of ${}^{29}$F within a three-body model
• Exploring the halo character and dipole response in the dripline nucleus ${}^{31}$F
• Two-neutron correlations in a Borromean ${}^{20}\mathrm{C}+n+n$ system: Sensitivity of unbound subsystems
• High precision studies of soft dipole mode in two-neutron halo nuclei: ${}^6$He case
• Prediction of two-neutron halos in the $N=28$ isotones ${}^{40}$Mg and ${}^{39}$Na
• Investigation of contributions of the $2_2^{+}$ resonance in ${}^6$He via analysis of ${}^6$He($p$, $p^{\prime }$)
• Cooper pairs in the Borromean nuclei ${}^6$He and ${}^{11}$Li using continuum single particle level density
• Pairing enhancement in a two-neutron transfer process through the continuum
• Two-cluster approach to the properties of one- and two-neutron-halo nuclei
• Deformation, halo, and bubble structure: A paradigm shift of exotic phenomena in light to medium mass nuclei
• Investigating the rate of ${}^{10}$Be(n,$\gamma$)${}^{11}$Be radiative capture reaction within the FRDWBA framework
• Three-body Description of $2n$-Halo and Unbound $2n$-Systems: ${}^{22}$C and ${}^{26}$O
• Impact of uncertainties of unbound ${}^{10}$Li on the ground state of two-neutron halo ${}^{11}$Li
• An overview of the scientific contribution of Andrea Vitturi to Nuclear Physics (being an account of the recent TNP19 meeting held in Padova)