Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Single Top Quark Production at the Fermilab Tevatron Collider   First evidence for single top quark production has recently been found by
both the D0 and CDF experiments. By combining three analyses, D0 measured a
cross section of 4.7 +- 1.3 pb, with a significance of 3.6 standard deviations,
and CDF's matrix elements analysis measured a cross section of 3.0 +1.2 -1.1
pb, with a significance of 3.1 standard deviations. These analyses also
provided the first direct measurements of the CKM matrix element, |Vtb|,
without assuming unitarity. This talk briefly describes the latest single top
production results from the two experiments.

15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg