Structure of states in 12Be via the 11Be(d,p) reaction

Structure of states in 12Be via the 11Be(d,p) reaction

The s-wave neutron fraction of the 0+ levels in 12Be has been investigated for the first time through the 11Be(d,p) transfer reaction using a 5A MeV11Be beam at TRIUMF, Canada. The reaction populated all the known bound states of 12Be. The ground state s-wave spectroscopic factor was determined to b...

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Veröffentlicht in:Physics letters. B 2010-01, Vol.682 (4-5), p.391-395
Hauptverfasser: Kanungo, R., Gallant, A.T., Uchida, M., Andreoiu, C., Austin, R.A.E., Bandyopadhyay, D., Ball, G.C., Becker, J.A., Boston, A.J., Boston, H.C., Brown, B.A., Buchmann, L., Colosimo, S.J., Clark, R.M., Cline, D., Cross, D.S., Dare, H., Davids, B., Drake, T.E., Djongolov, M., Finlay, P., Galinski, N., Garrett, P.E., Garnsworthy, A.B., Green, K.L., Grist, S., Hackman, G., Harkness, L.J., Hayes, A.B., Howell, D., Hurst, A.M., Jeppesen, H.B., Leach, K.G., Macchiavelli, A.O., Oxley, D., Pearson, C.J., Pietras, B., Phillips, A.A., Rigby, S.V., Ruiz, C., Ruprecht, G., Sarazin, F., Schumaker, M.A., Shotter, A.C., Sumitharachchi, C.S., Svensson, C.E., Tanihata, I., Triambak, S., Unsworth, C., Williams, S.J., Walden, P., Wong, J., Wu, C.Y.
Format: Artikel
Sprache:eng
Schlagworte:
Inverse kinematics
Radioactive beams
Shell structure
Transfer reactions
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Zusammenfassung:The s-wave neutron fraction of the 0+ levels in 12Be has been investigated for the first time through the 11Be(d,p) transfer reaction using a 5A MeV11Be beam at TRIUMF, Canada. The reaction populated all the known bound states of 12Be. The ground state s-wave spectroscopic factor was determined to be 0.28−0.07+0.03 while that for the long-lived 02+ excited state was 0.73−0.40+0.27. This observation, together with the smaller effective separation energy indicates enhanced probability for an extended density tail beyond the 10Be core for the 02+ excited state compared to the ground state.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2009.11.025