Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-Oblique Effects in the Z b b_bar Vertex from ETC Dynamics   Extended technicolor theories generate potentially large corrections to the
$\Zbb$ vertex which can be observed in current experiments at LEP.

26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
3
The categories of this paper are: physics