Energy losses of Q-balls in Matter, Earth and Detectors
  We present a sudy of the interactions of Q-balls with matter, and their energy losses in the earth, for a large range of velocities. These calculations are used to computethe fractional geometrical acceptance of underground detectors. Furthermore we computed the light yield in liquidscintillators, the ionization in streamer tubes and the Restricted Energy Loss in nuclear track detectors. 
M. Ouchrif (Bologna University and Oujda University)