Collective flow in intermediate energy heavy-ion collisions has been investigated using the Michigan State University 4;Collective directed transverse flow was measured with a transverse momentum analysis method in which the reaction plane was determined using the azimuthal correlation technique. The energy at which collective transverse flow in the reaction plane disappears, termed the balance energy ;Collective radial flow of light fragments in the nuclear disassembly process is demonstrated through transverse energy production. The mean transverse kinetic energy (E... |