Nuclear break-up of Be-11

作者：Lima V; Scarpaci J A^*; 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

来源：Nuclear Physics A, 2007, 795: 1-18.

DOI：10.1016/j.nuclphysa.2007.07.005

• 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

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.

• 出版日期2007-11-1
• 单位中国地震局