SMITH, Robin, WHELDON, Carl, FREER, Martin, CURTIS, Neil, KOKALOVA, Tzany, ALMARAZ-CALDERON, S., APRAHAMIAN, A., ASHWOOD, N. I., BARR, M., BUTCHER, B., COPP, P., COUDER, M., FANG, X., GOLDRING, G., JUNG, F., LESHER, S. R., LU, W., MALCOLM, J. D., ROBERTS, A., TAN, W. P. and ZIMAN, V. A. (2016). Evidence for a 3.8 MeV state in 9Be. Physical Review C (PRC), 94, 014320.
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Abstract
The breakup reaction 9Be(4He,3a)n was measured using an array of four double-sided silicon strip detectors at beam energies of 22 and 26 MeV. Excited states in 9Be up to 8 MeV were populated and reconstructed through measurements of the charged reaction products. Evidence is given for a state in 9Be at 3.82-0.09+0.08 MeV with width=1240-90+270 keV. This is consistent with two recent measurements of a state with similar properties in the mirror nucleus 9B. An analysis of the reduced widths (Beg.s.8 channel) of this state along with the proposed mirror state has led to a firm limit of J<=7/2 and a tentative assignment of J^pi=1/2- or 3/2-.
Item Type: | Article |
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Identification Number: | https://doi.org/10.1103/PhysRevC.94.014320 |
Page Range: | 014320 |
Depositing User: | Robin Smith |
Date Deposited: | 18 Jun 2018 09:21 |
Last Modified: | 18 Mar 2021 11:49 |
URI: | https://shura.shu.ac.uk/id/eprint/21580 |
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