P. Santi

Transfer and/or Breakup Modes in The He-6+Bi-209 Reaction Near the Coulomb Barrier

Reaction products from the interaction of 6He with 209Bi have been measured at energies near the Coulomb barrier. A 4He group of remarkable intensity, which dominates the total reaction cross section, has been observed. The angular distribution of the group suggests that it results primarily from a direct nuclear process. It is likely that this transfer and/or breakup channel is the doorway state that accounts for the previously observed large sub-barrier fusion enhancement in this system.

Nuclear and Coulomb Interaction in 8B Breakup at Sub-Coulomb Energies

The angular distribution for the breakup of 8B-->7Be+p on a 58Ni target has been measured at an incident energy of 25.75 MeV. The data are inconsistent with first-order theories but are remarkably well described by calculations including higher-order effects. The comparison with theory illustrates the importance of the inclusion of the exotic proton halo structure of 8B in accounting for the data.

Nuclear and Coulomb Interaction in the 8B to 7Be + p Breakup Reaction at sub-Coulomb Energies

The angular distribution for the breakup of 8B-->7Be+p on a 58Ni target has been measured at an incident energy of 25.75 MeV. The data are inconsistent with first-order theories but are remarkably well described by calculations including higher-order effects. The comparison with theory illustrates the importance of the inclusion of the exotic proton halo structure of 8B in accounting for the data.

Elastic scattering of 9 Li and 11 Li from 12 C at 50 MeV per nucleon

The elastic scattering of

Gamma-ray spectroscopy with a low-energy 6He radioactive ion beam

{}^{9}\mathrm{Li}{+}^{12}\mathrm{C}

Subcoulomb dissociation of 8B

and

Small angle neutron-neutron correlation functions for the 16O+27Al reaction at 220 MeV

{}^{11}\mathrm{Li}{+}^{12}\mathrm{C}

Investigation of 8B structure at low excitation energies

has been measured at an incident energy of 50 MeV per nucleon over the angular range from 2\ifmmode^\circ\else\textdegree\fi{} to 15\ifmmode^\circ\else\textdegree\fi{} in the center-of-momentum frame. The elastic and inelastic reaction channels were cleanly separated in the critical forward-angle region where a predicted nearside/far-side interference minimum should be observed. The angular distributions obtained in this experiment are consistent with existing quasielastic measurements at 60 MeV per nucleon. In particular, the

Direct measurement of the L/K ratio in the electron capture decay of 7Be with cryogenic micro-calorimeters

{}^{9}\mathrm{Li}

Coulomb dissociation of 8B at sub-barrier energies

data display the interference minimum, while it is absent for