  The angular distribution for the breakup of 8B into 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 exotic proton halo structure of 8B in accounting for the
observed breakup angular distribution.
