Momentum Transfer to Target-Fragmentation Products in the Reactions of 25-GeVC12with Au

Abstract
The thick-target-thick-catcher technique has been used to determine average kinetic properties of a number of target-fragmentation products formed in the reactions of 25-GeV (2.1-GeV/nucleon) C12 ions with Au. The forward momentum transferred to the target as a function of product mass is essentially identical to that for 28-GeV protons, but quite different than that for 1.0- and 3.0-GeV protons, suggesting that the total projectile kinetic energy is the significant parameter governing limiting fragmentation rather than the energy per nucleon.