Fragmentation functions of mesons in the Field-Feynman model

Jing Hua, Bo-Qiang Ma

The fragmentation functions of the pion with distinction between $D_u^{{\pi }^{+}}$, $D_d^{{\pi }^{+}}$, and $D_s^{{\pi }^{+}}$ are studied in the Field-Feynman recursive model, by taking i…