Quark Fragmentation into ³Pⱼ Quarkonium
Ma, J. P.
Original · EN
We calculate the functions of parton fragmentation into ³Pⱼ quarkonium at order αₛ ², where the parton can be a heavy or light quark. The obtained functions explicitly satisfy the Altarelli-Parisi equation and they are divergent, behaving as z⁻¹ near z=0. However, if one choses the renormalization scale as twice of the heavy quark mass, the fragmentation functions are regular over the whole range of z.
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