Revisiting limiting fragmentation in heavy ion collisions at the LHC

Understanding the particle productions mechanism in high energy nuclear collisions have always been fascinating. During the late 1960s, the hypothesis of limiting fragmentation became important to understand the particle production. According to this hypothesis the produced particles, in the rest frame of one of the projectile become independent of centre of mass energies, thus following a possible scaling (as a function of η' = η ± ybeam), known as limiting fragmentation (LF). As (pseudo)rapidity is a longitudinal variable it is also called longitudinal scaling