Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Perturbative and Non-Perturbative Issues in Heavy Quark Fragmentation   We review the state-of-the-art of our understanding of heavy quark
fragmentation. Recent e^+e^- data for B mesons are compared to the most
up-to-date theoretical predictions, and the need for inclusion of a
non-perturbative component is discussed. Experimental analyses in moments space
are suggested, and it is pointed out how perturbative and non-perturbative
contributions are to be properly matched. Failure to do so can result in large
phenomenological discrepancies. An example is given for B^+ hadroproduction at
the Tevatron.

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The categories of this paper are: nlin
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The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
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The categories of this paper are: econ
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
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The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph