Calculations of three-body observables in ${}^8\mathrm{B}$ breakup

We discuss calculations of three-body observables for the breakup of ${}^8\mathrm{B}$ on a ${}^{58}\mathrm{Ni}$ target at low energy using the coupled discretized continuum channels approach. Calculations of both the angular distribution of the ${}^7\mathrm{Be}$ fragments and their energy distributions are compared with those measured at several laboratory angles. In these observables there is interference between the breakup amplitudes from different spin-parity excitations of the projectile. The resulting angle and the energy distributions reveal the importance of the higher-order continuum state couplings for an understanding of the measurements.