Investigation of the excitation spectrum of 8He via deuteron inelastic scattering

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dc.creator Singh, Gurmukh
dc.date.accessioned 2024-02-06T18:45:32Z
dc.date.available 2024-02-06T18:45:32Z
dc.date.issued 2023-12-12
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/31884
dc.description.abstract Halo nuclei form due to weak binding at extreme proton-neutron asymmetries near driplines and these uncovered alterations in nuclear shell structure. These halos can exhibit a phenomenon known as a soft dipole resonance. It was postulated that 2+ state of 8He may be a mixed with lowlying soft dipole resonance state but it is an unsettled issue. In this work, the deuteron inelastic scattering off a neutron halo nucleus, 8He, has been studied in inverse kinematics at the IRIS facility at TRIUMF. This study presents findings of first excited state at E = 3.57 ± 0.02 MeV with resonance width of 0.64 ± 0.06 MeV along with the ground state. The possibility of absence of low-energy soft dipole resonance in the extracted excitation spectrum might be due to the stronger binding of 8He. There is also no intruder s-orbital known in 8He which can allow L=1 particle-hole excitation. en_CA
dc.description.provenance Submitted by Greg Hilliard (greg.hilliard@smu.ca) on 2024-02-06T18:45:32Z No. of bitstreams: 1 Singh_Gurmukh_MASTERS_2023.pdf: 8707078 bytes, checksum: 0bc42fdf0d6e6130a0b3d3a6f8ffae98 (MD5) en
dc.description.provenance Made available in DSpace on 2024-02-06T18:45:32Z (GMT). No. of bitstreams: 1 Singh_Gurmukh_MASTERS_2023.pdf: 8707078 bytes, checksum: 0bc42fdf0d6e6130a0b3d3a6f8ffae98 (MD5) Previous issue date: 2023-12-12 en
dc.language.iso en en_CA
dc.title Investigation of the excitation spectrum of 8He via deuteron inelastic scattering en_CA
dc.type Text en_CA
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