The Structure of ⁷ He

Authors

A. H. Wuosmaa, Western Michigan University
K. E. Rehm, Argonne National Laboratory
J. P. Greene, Argonne National Laboratory
D. J. Henderson, Argonne National Laboratory
R. V.F. Janssens, Argonne National Laboratory
C. L. Jiang, Argonne National Laboratory
L. Jisonna, Northwestern University
J. C. Lighthall, Western Michigan University
S. T. Marley, Western Michigan University
E. F. Moore, Argonne National Laboratory
R. C. Pardo, Argonne National Laboratory
N. Patel, Colorado School of Mines
M. Paul, Hebrew University of Jerusalem
D. Peterson, Argonne National Laboratory
S. C. Pieper, Argonne National Laboratory
G. Savard, Argonne National Laboratory
J. P. Schiffer, Argonne National Laboratory
R. E. Segel, Northwestern University
R. H. Siemssen, KVI-Center for Advanced Radiation Technology
X. Tang, Argonne National Laboratory
R. B. Wiringa, Argonne National Laboratory

Document Type

Conference Proceeding

Publication Date

1-1-2008

Abstract

We have studied the properties of the unbound isotope of helium 7He, using the 2H(8Li,3He)7He reaction. When combined with prior measurements of the 2H(6He,p)7He reaction the data present a consistent picture for the low-lying excited states of 7He, specifically the negative parity sequence 3/2- (ground state) 1/2- (first-excited) and 5/2- (second-excited). The shapes but not the absolute magnitudes of the angular distributions are reproduced by ab-initio theory coupled with a DWBA reaction framework.

Publication Source (Journal or Book title)

AIP Conference Proceedings

First Page

225

Last Page

232

Recommended Citation

Wuosmaa, A., Rehm, K., Greene, J., Henderson, D., Janssens, R., Jiang, C., Jisonna, L., Lighthall, J., Marley, S., Moore, E., Pardo, R., Patel, N., Paul, M., Peterson, D., Pieper, S., Savard, G., Schiffer, J., Segel, R., Siemssen, R., Tang, X., & Wiringa, R. (2008). The Structure of ⁷ He. AIP Conference Proceedings, 1012, 225-232. https://doi.org/10.1063/1.2939300