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• FRAGMENTATION

• Phenomenological Models: represent well the existing data &

• have ``some'' predictive power at higher energies

• Models of probabilistic an iterative nature

• Fragmentation described as one (or a few) simple branchings:

• jet ® hadron + remainder-jet

• string ® hadron + remainder-string

• cluster ® hadron + hadron

• or

• cluster ® cluster + cluster

• THREE Independent Fragmentation (IF)

• MAIN String Fragmentation (SF) (Lund Model)

• SCHOOLS Cluster Fragmentation (CF)