Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Polarised $\Lambda$ production in QCD   The $Q^2$ evolution of polarised parton fragmentation functions is discussed
using Altarelli-Parisi evolution equations. The first moments of both polarised
quark and gluon fragmentation functions are shown to behave in a similar
fashion at very high energies. This analysis is applicable to any hard
processes involving production of polarised hadrons. The polarised $\Lambda$
hyperon production in $e^+~e^-$ annihilation where this can be realised is
considered. We present a complete $\alpha_s(Q^2)$ corrections to the
asymmetries discussed in the paper of Burkardt and Jaffe which demonstrates the
extraction of various polarised fragmentation functions. To this order, these
corrections are found to be scheme dependent similar to that of structure
functions.

16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
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The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an