Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the top-quark mass using missing $E_T$+jets events with
  secondary vertex $b$-tagging at CDF II   We present a measurement of the top-quark mass in $p\bar p$ collisions at
\hbox{$\sqrt{s}=1.96$} TeV which uses events with an inclusive signature of
missing transverse energy and jets. % The event selection is sensitive to
$t\bar t\to W^+bW^-\bar b\to l\nu b q q^\prime \bar b$ independent of the
lepton flavor, and results in a large acceptance for $W\to\tau\nu$ decays. %
All-hadronic $t\bar t$ decays and events with identified electrons or muons are
vetoed to provide a statistically independent sample with respect to all
previous measurements. % The top-quark mass is inferred from the distribution
of the scalar sum of all jet transverse energies and the missing transverse
energy. Using 311 pb$^{-1}$ of integrated luminosity recorded by the Collider
Detector at Fermilab, we measure a top-quark mass $m_t = 172.3
^{+10.8}_{-9.6}$(stat.)$\pm 10.8$(syst.) GeV/$c^2$. While the uncertainty on
$m_t$ is larger than that of other measurements, the result is statistically
uncorrelated with those of other methods, and thus can help to reduce the
overall $m_t$ uncertainty when combined with other existing measurements.

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The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol