Spectroscopic factors for the 9Li ground state and N=6 shell closure

• Published in: Physics letters. B Vol. 660; no. 1-2; pp. 26 - 31
• Main Authors: Kanungo, R., Andreyev, A.N., Buchmann, L., Davids, B., Hackman, G., Howell, D., Khalili, P., Mills, B., Rodal, E. Padilla, Pieper, Steven C., Pearson, J., Ruiz, C., Ruprecht, G., Shotter, A., Tanihata, I., Vockenhuber, C., Walden, P., Wiringa, R.B.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 14.02.2008; Elsevier Science
• Subjects: Distorted-wave Born approximation; Elastic scattering; Exact sciences and technology; Nuclear physics; Optical potentials; Physics; Spectroscopic factors; The physics of elementary particles and fields; Transfer reaction; Unstable nuclei; Transfer reaction; Spectroscopic factors; 25.60.Je; Elastic scattering; Unstable nuclei; 24.10.Ht; 21.10.Jx; Distorted-wave Born approximation; 21.60.De; 24.50.+g; 25.60.Bx; Optical potentials; Neutron separation energy; Ground states; N shell; Neutron transfer; Models; Neutron reactions
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/j.physletb.2007.12.024

The ground state structure of 9Li has been investigated through the d(Li9,t)Li8 one-neutron transfer reaction at E/A=1.68 MeV. The 8Li sub-system in 9Li was observed in its lowest three energy levels. The spectroscopic factors derived from a DWBA analysis are fairly consistent in trend with model calculations. The understanding of the N=6 sub-shell closure from the spectroscopic information and neutron separation energies is discussed.