| NUCLEAR PHYSICS |
|
|
|
|
New Measurements for 8He Excited States |
| XIAO Jun1, YE Yan-Lin1**, CAO Zhong-Xin1, JIANG Dong-Xing1, ZHENG Tao1, HUA Hui1, LI Zhi-Huan1,2, LI Xiang-Qing1, GE Yu-Cheng1, LOU Jian-Ling1, PANG Dan-Yang1, LV Lin-Hui1, LI Qi-Te1, QIAO Rui1, YOU Hai-Bo1, CHEN Rui-Jiu1, H. Sakurai2, H. Otsu2, M. Nishimura2, S. Sakaguchi2, H. Baba2, Y. Togano2, K. Yoneda2, LI Chen2,3, WANG Shuo1,2, WANG He1,2, LI Kuo-Ang1,2, Y. Nakayama4, Y. Kondo4, S. Deguchi4, Y. Satou5, K. H. Tshoo5 |
1School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871
2RIKEN, 2-1Hirosawa, Wako, Saitama 351-0198, Japan
3Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
4Department of Physics, Tokyo Institute of Technology, Japan
5School of Physics, Seoul National University, Korea |
|
| Cite this article: |
|
|
|
|
|
|
Abstract Breakup reactions of the double borromean nucleus 8He were measured at 82.3 MeV/u on CH2 and C targets. The coincident detection of two decaying neutrons and the high performance for neutron cross talk rejection are realized in this experiment. The relative energy spectrum for 8He was reconstructed with good statistics. The spectrum exhibits a structure of two resonant peaks, one at an excitation energy of about 3.0 and the other at about 4.14 MeV, respectively. Substantially larger cross section for the first resonance is observed in comparison to the results reported previously.
|
|
|
Received: 05 April 2012
Published: 31 July 2012
|
|
| PACS: |
25.60.-t
|
(Reactions induced by unstable nuclei)
|
| |
25.70.Bc
|
(Elastic and quasielastic scattering)
|
| |
24.10.Eq
|
(Coupled-channel and distorted-wave models)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
