Nuclear break-up of 11Be

被引:13
|
作者
Lima, V.
Scarpaci, J. A. [1 ]
Lacroix, D.
Blumenfeld, Y.
Bourgeois, C.
Chabot, M.
Chomaz, Ph.
Desesquelles, P.
Duflot, V.
Duprat, J.
Fallot, M.
Frascaria, N.
Grevy, S.
Guillemaud-Mueller, D.
Roussel-Chomaz, P.
Savajols, H.
Sorlin, O.
机构
[1] Univ Paris 11, Inst Phys Nucl, CNRS, IN2P3, F-91406 Orsay, France
[2] Univ Caen, IN2P3, CNRS, ENSICAEN,Lab Phys Corp, F-14050 Caen, France
[3] CNRS, IN2P3, CEA, GANIL,BP 5027, F-14050 Caen, France
关键词
nuclear reactions Ti-48(11 Be; X); E=4l MeV/nucleon; measured E upsilon; upsilon; E gamma; gamma; (Be-10)n-coinc; angular distributions; deduced cross sections and spectroscopic factors;
D O I
10.1016/j.nuclphysa.2007.07.005
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The break-up of Be-11 was studied at 41 AMeV using a secondary beam of Be-11 from the GANIL facility on a Ti-48 target by measuring correlations between the Be-10 core, the emitted neutrons and gamma rays. The nuclear break-up leading to the emission of a neutron at large angle in the laboratory frame is identified with the "towing mode" through its characteristic n-fragment correlation. The experimental spectra are compared with a model where the time dependent Schrodinger equation (TDSE) is solved for the neutron initially in the Be-11. A good agreement is found between experiment and theory for the shapes of neutron experimental energies and angular distributions. The spectroscopic factor of the 2s orbital is tentatively extracted to be 0.46 +/- 0.15. The neutron emission from the 1 p and 1 d orbitals is also studied. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:1 / 18
页数:18
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