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APS » Journals » Phys. Rev. C » Volume 78 » Issue 4
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Phys. Rev. C 78, 041302(R) (2008) [5 pages]

Structure of 7He by proton removal from 8Li with the (d,3He) reaction

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A. H. Wuosmaa1, J. P. Schiffer2, K. E. Rehm2, J. P. Greene2, D. J. Henderson2, R. V. F. Janssens2, C. L. Jiang2, L. Jisonna3, J. C. Lighthall1, S. T. Marley1, E. F. Moore2, R. C. Pardo2, N. Patel4, M. Paul5, D. Peterson2, Steven C. Pieper2, G. Savard2, R. E. Segel3, R. H. Siemssen6, X. D. Tang2, and R. B. Wiringa2
1Physics Department, Western Michigan University, Kalamazoo, Michigan 49008-5252, USA
2Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
3Physics Department, Northwestern University, Evanston, Illinois 60208, USA
4Physics Department, Colorado School of Mines, Golden, Colorado 80401, USA
5Hebrew University, Jerusalem, Israel 91904
6Kernfysich Versneller Instituut, 9747 AA Groningen, The Netherlands

Received 30 June 2008; published 10 October 2008

We report on a study of the structure of the unbound nucleus 7He utilizing the proton-removal reaction 2H(8Li,3He)7He. Combining the present results with those of our prior measurements of the neutron-adding reaction 2H(6He,p)7He, a consistent picture emerges for the low-lying excitations in 7He. Specifically, the negative-parity sequence of resonances, in order of excitation energies, is consistent with 3/2-,1/2-, and 5/2-. The stable-beam reactions 2H(7Li,t)6Li and 2H(7Li,3He)6He were also measured. The results are compared with the predictions of nuclear structure models, including those of ab initio quantum Monte Carlo calculations.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.78.041302
DOI:
10.1103/PhysRevC.78.041302
PACS:
25.60.Je, 21.10.Jx, 21.60.De, 27.20.+n
 
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