Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Physics Beyond the Single Top Quark Observation   In March 2009, the DZero Collaboration first observed the electroweak
production of single top quarks at 5 sigma significance. We measured the cross
section for the combined s-channel and t-channel production modes, and set a
lower limit on the CKM matrix element |V_tb|. Since then, we have used the same
dataset to measure the t-channel production mode independently, the combined
cross section in the hadronically-decaying tau lepton final state, and the
width and lifetime of the top quark, and we have set upper limits on
contributions from anomalous flavor-changing neutral currents. This paper
describes these new measurements, as presented at the 3rd International
Workshop on Top Quark Physics, held in Brugge, Belgium, May 31 - June 4, 2010.

10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat