Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A first look at data from the NO$\nu$A upward-going muon trigger   The NO$\nu$A collaboration has constructed a 14,000 ton, fine-grained, low-Z,
total absorption tracking calorimeter at an off-axis angle to an upgraded NuMI
neutrino beam. This detector, with its excellent granularity and energy
resolution and relatively low-energy neutrino thresholds, was designed to
observe electron neutrino appearance in a muon neutrino beam, but it also has
unique capabilities suitable for more exotic efforts. In fact, if sufficient
cosmic ray background rejection can be demonstrated, NO$\nu$A will be capable
of a competitive indirect dark matter search for low-mass Weakly-Interacting
Massive Particles (WIMPs). The cosmic ray muon rate at the NO$\nu$A far
detector is approximately 100 kHz and provides the primary challenge for
triggering and optimizing such a search analysis. The status of the NO$\nu$A
upward-going muon trigger and a first look at the triggered sample is
presented.

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The categories of this paper are: hep-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
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The categories of this paper are: nlin
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The categories of this paper are: plasm-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: stat
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
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The categories of this paper are: bayes-an
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The categories of this paper are: astro-ph