Quark Fragmentation into ^3P_J Quarkonium

Details Quark Fragmentation into ^3P_J Quarkonium Quark Fragmentation into ^3P_J Quarkonium

1995-04-10

arxiv.org/abs/hep-ph/9504263v1

Phys.Rev.D53:1185-1190,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages+2 Figs, postscript file format, uuencoded and compressed

Scientific paper

10.1103/PhysRevD.53.1185

We calculate the functions of parton fragmentation into $^3P_J$ quarkonium at order $\alpha_s ^2$, 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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