Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Direct Top Quark Production at Hadron Colliders as a Probe of New
  Physics   We examine the effect of an anomalous flavor changing chromomagnetic moment
which allows direct top quark production (two partons combining into an
unaccompanied single top quark in the s-channel) at hadron colliders. We
consider both t-c-g and t-u-g couplings. We find that the anomalous charm quark
coupling parameter $\kappa_c / \Lambda$ can be measured down to $.06
TeV^{-1}(.009 TeV^{-1}$) at the Tevatron with the Main Injector upgrade(LHC).
The anomalous up quark coupling parameter $\kappa_u / \Lambda$ can be measured
to $.02 TeV^{-1}(.003 TeV^{-1}$) at the Tevatron(LHC).

10
The categories of this paper are: q-bio
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg