Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for New Particles Decaying to top-antitop in proton-antiproton
  collisions at squareroot(s)=1.8 TeV   We use 106 $\ipb$ of data collected with the Collider Detector at Fermilab to
search for narrow-width, vector particles decaying to a top and an anti-top
quark. Model independent upper limits on the cross section for narrow, vector
resonances decaying to $\ttbar$ are presented. At the 95% confidence level, we
exclude the existence of a leptophobic $\zpr$ boson in a model of
topcolor-assisted technicolor with mass $M_{\zpr}$ $<$ 480 $\gev$ for natural
width $\Gamma$ = 0.012 $M_{\zpr}$, and $M_{\zpr}$ $<$ 780 $\gev$ for $\Gamma$ =
0.04 $M_{\zpr}$.

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The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
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The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
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The categories of this paper are: math
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat