Complex scaling method for three- and four-body scattering above the   break-up thresholds
  A formalism based on the complex-scaling method is presented to solve the few particle scattering problem in configuration space using bound state techniques with trivial boundary conditions. Several applications to A=3,4 systems are presented to demonstrate the efficiency of the method in computing elastic as well as break-up reactions with Hamiltonians including both short and long-range interaction. 
Rimantas Lazauskas and Jaume Carbonell
nucl-th quant-ph