Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evaluating Reactor Antineutrino Signals for WATCHMAN   Increasing the distance from which an antineutrino detector is capable of
monitoring the operation of a registered reactor, or discovering a clandestine
reactor, strengthens the Non-Proliferation of Nuclear Weapons Treaty. This
paper presents calculations of reactor antineutrino interactions from
quasi-elastic neutrino-proton scattering and elastic neutrino-electron
scattering in a water-based detector operated $\gtrsim10$ km from a commercial
power reactor. It separately calculates signal from the proximal reactor and
background from all other registered reactors. The main results are
differential and integral interaction rates from the quasi-elastic and elastic
processes. There are two underground facilities capable of hosting a detector
($\sim1$ kT H$_2$O) project nearby ($L\sim20$ km) an operating commercial
reactor ($P_{th}\sim3$ GW). These reactor-site combinations, which are under
consideration for project WATCHMAN, are Perry-Morton on the southern shore of
Lake Erie in the United States and Hartlepool-Boulby on the western shore of
the North Sea in England. The signal rate from the proximal reactor is about
five times greater at the Morton site than at the Boulby site due to shorter
reactor-site separation distance, larger reactor thermal power, and greater
neutrino oscillation survival probability. Although the background rate from
all other reactors is larger at Morton than at Boulby, it is a smaller fraction
of the signal rate from the proximal reactor at Morton than at Boulby.
Moreover, the Hartlepool power plant has two cores whereas the Perry plant has
a single core. The Boulby site, therefore, offers an opportunity for remotely
monitoring the on/off cycle of a reactor core under more stringent conditions
than does the Morton site.

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The categories of this paper are: gr-qc
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The categories of this paper are: q-bio
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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-ph
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-th
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The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: supr-con
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn