HELIUM CLUSTERING IN NEUTRON-RICH Be ISOTOPES

被引:0
|
作者
Vukman, N. [1 ]
Soic, N. [1 ]
Freer, M. [2 ]
Alcorta, M. [3 ]
Connolly, D. [3 ]
Colovic, P. [1 ]
Davinson, T. [4 ]
Di Pietro, A. [5 ]
Lennarz, A. [3 ]
Psaltis, A. [6 ]
Ruiz, C. [3 ]
Shotter, A. [4 ]
Uroic, M. [1 ]
Williams, M. [3 ]
机构
[1] Rudjer Boskovic Inst, Zagreb, Croatia
[2] Univ Birmingham, Birmingham, England
[3] TRIUMF, Vancouver, BC, Canada
[4] Univ Edinburgh, Edinburgh, Scotland
[5] INFN Lab Nazl Sud, Catania, Italy
[6] McMaster Univ, Hamilton, ON, Canada
基金
加拿大自然科学与工程研究理事会; 欧盟地平线“2020”; 英国科学技术设施理事会;
关键词
D O I
10.5506/APhysPolBSupp.16.4-A34
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The experimental study of the helium decays of the Be-10 and Be-12 excited states was performed at TRIUMF, Vancouver, using the transfer reactions of the Li-9 beam on the LiF target and resonant particle spec-troscopy technique. Part of the results from the full dataset are presented here, for the He-4+He-6 (0(+); 1.8 MeV, 2(+)), He-6+He-6 (0(+); 1.8 MeV, 2(+)), and He-4+He-8 decays of the Be-10 and Be-12 excited states, respectively. The He-6+He-6 (1.8 MeV, 2(+)) decay channel was observed for the first time in the present experiment, while for the He-4+He-6 (1.8 MeV, 2(+)) decay channel, there was previously only one measurement available, which present results agree with. New highly excited states were observed in all decay channels studied. Although branching ratios and the spins of the states were not determined, important spectroscopic information is obtained and present results are in good agreement with the proposed a-Xn-a molecular struc-ture of these isotopes, based on the comparison with previously published results.
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页数:4
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