  We investigate the breakup of the ^{11}Be halo nuclei on a light target
^{12}C within quantum-quasiclassical approach in a wide range of the beam
energy (5-67 MeV/nucleon) including bound states and low-lying resonances in
different partial and spin states of ^{11}Be. The obtained results are in good
agreement with existing experimental data at 67 MeV/nucleon. We also
demonstrate that the developed computational scheme can be used for
investigation of nuclei spectral properties in low-energy breakup experiments
on different targets.
