Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: First Constraint on Coherent Elastic Neutrino-Nucleus Scattering in
  Argon   Coherent elastic neutrino-nucleus scattering (CEvNS) is the dominant neutrino
scattering channel for neutrinos of energy $E_\nu < 100$ MeV. We report a limit
for this process using data collected in an engineering run of the 29 kg
CENNS-10 liquid argon detector located 27.5 m from the Oak Ridge National
Laboratory Spallation Neutron Source (SNS) Hg target with $4.2\times 10^{22}$
protons on target. The dataset yielded $< 7.4$ observed CEvNS events implying a
cross section for the process, averaged over the SNS pion decay-at-rest flux,
of $<3.4 \times 10^{-39}$ cm$^{2}$, a limit within twice the Standard Model
prediction. This is the first limit on CEvNS from an argon nucleus and confirms
the earlier CsI non-standard neutrino interaction constraints from the
collaboration. This run demonstrated the feasibility of the ongoing
experimental effort to detect CEvNS with liquid argon.

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The categories of this paper are: q-bio
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The categories of this paper are: cond-mat
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The categories of this paper are: chem-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: supr-con
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The categories of this paper are: q-fin
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The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-th