Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analytic Perturbation Theory and Inclusive Tau Decay   We apply analytic perturbation theory to the inclusive decay of a $\tau$
lepton into hadrons. It is shown that the resulting analyticity of the coupling
constant strongly influences the value of the QCD $\Lambda$-parameter extracted
from the experimental data on $\tau$ decay.

20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
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The categories of this paper are: eess
11
The categories of this paper are: hep-lat
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The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio