Quark fragmentation into {sup 3}{ital P}{sub {ital J}} quarkonium
- Research Center for High Energy Physics, School of Physics, University of Melbourne, Parkville, Victoria 3052 (Australia)
We calculate the functions of parton fragmentation into {sup 3}{ital P}{sub {ital J}} quarkonium at order {alpha}{sub {ital s}}{sup 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 {ital z}{sup {minus}}{sup 1} near {ital z}=0. However, if one chooses the renormalization scale as twice the heavy quark mass, the fragmentation functions are regular over the whole range of {ital z}. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 278551
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 3 Vol. 53; ISSN 0556-2821; ISSN PRVDAQ
- Country of Publication:
- United States
- Language:
- English
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