Structure of neutron-rich beryllium and carbon isotopes

✍ Scribed by H.G. Bohlen; R. Kalpakchieva; W. von Oertzen; T.N. Massey; B. Gebauer; T. Kokalova; A.A. Ogloblin; Ch. Schulz; S. Thummerer

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 234 KB
• Volume: 738
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2004.04.056

✦ Synopsis

The structure of the neutron-rich isotopes 12Be, 16C and 17C has been studied using the (12C,gC) three-neutron transfer reaction on Be, 13C and 14C targets, respectively. Excited states up to 17 MeV excitation energy were observed. In 16C and 17C the populated structures have a dominant ( ~d ) ~ neutron configuration, these are three-particles one-hole (3plh) states in 16C and three-particles zero-hole (3pOh) states in 17C. In 12Be a larger variety of configurations is expected. Besides the low-lying states with (2p2h) character, also odd parity (3p3h) configurations are populated. In addition, due to the pronounced a-n-a cluster structure of the Be ground state, molecular structures in I2Be with 6He+6He and 4He+8He configurations can be populated by the three-neutron transfer.