Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the Top Quark Mass with the Collider Detector at Fermilab   We present a new measurement of the top quark mass in $t\bar t$ events in
which both $W$ bosons from top quarks decay into lepton ($e \nu,\mu \nu$).
  We use events collected by the CDF experiment from $p\bar p$ collisions at
\sqrt s=1.8 TeV at the Tevatron collider. We measure a top quark mass of 167.4
\pm 10.3(stat) \pm 4.8(syst) GeV/c^2 from a sample of eight events. We combine
this result with previous CDF measurements in other decay channels to obtain a
mass value of 176.0 \pm 6.5 GeV/c^2.

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The categories of this paper are: acc-phys
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The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
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The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat