Structure of states in 12Be via the 11Be( d,p) reaction
Abstract
The s-wave neutron fraction of the 0 levels in 12Be has been investigated for the first time through the 11Be(d,p) transfer reaction using a 5 A MeV11Be beam at TRIUMF, Canada. The reaction populated all the known bound states of 12Be. The ground state s-wave spectroscopic factor was determined to be 0.28-0.07+0.03 while that for the long-lived 02+ excited state was 0.73-0.40+0.27. This observation, together with the smaller effective separation energy indicates enhanced probability for an extended density tail beyond the 10Be core for the 02+ excited state compared to the ground state.
- Publication:
-
Physics Letters B
- Pub Date:
- January 2010
- DOI:
- 10.1016/j.physletb.2009.11.025
- Bibcode:
- 2010PhLB..682..391K
- Keywords:
-
- 21.10.Gv;
- 21.10.Jx;
- 21.10.Pc;
- 21.60.Cs;
- 24.10.Eq;
- 25.60.Je;
- 27.10.+h;
- Mass and neutron distributions;
- Spectroscopic factors and asymptotic normalization coefficients;
- Single-particle levels and strength functions;
- Shell model;
- Coupled-channel and distorted-wave models;
- Transfer reactions;
- A<
- =5
