Abstract
Electromagnetic and nuclear inelastic scattering of the halo nucleus have been investigated by a measurement of the one-neutron removal channel, utilizing a secondary beam with an energy of 520 MeV/nucleon impinging on lead and carbon targets. All decay products, i.e., fragments, neutrons, and rays have been detected in coincidence. Partial cross sections for the population of ground and excited states in were determined for nuclear diffractive breakup as well as for electromagnetically induced breakup. The partial cross sections for ground-state transitions have been differentiated further with respect to excitation energy, and the dipole-strength function associated solely with transitions of the halo neutron to the continuum has been derived. The extracted dipole strength integrated from the neutron threshold up to 6.1 MeV excitation energy amounts to A spectroscopic factor for the single-particle configuration of 0.61(5) and a root-mean-square radius of the neutron wave function of 5.7(4) fm have been deduced.
- Received 8 July 2003
DOI:https://doi.org/10.1103/PhysRevC.68.034318
©2003 American Physical Society