Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nuclei as Probes of Meson-Nucleon Interactions at High and Low Energy   This dissertation explores two main topics: 1) Color Transparency and
quasi-elastic knockout reactions involving pions and $\rho$ mesons; and 2)
determination of the $J/\psi$-nucleon scattering amplitude and scattering
length via $J/\psi$ electroproduction on the deuteron. It is shown that at the
energies available at the COMPASS experiment at CERN, Color Transparency should
be detectable in the reaction $\pi+A\to \pi+p+(A-1)^*$ (proton knockout). It is
also shown that Color Transparency should be detectable in the
electroproduction reaction $\gamma^*+A\to\rho+p+(A-1)^*$ at small $Q^2$ (where
$Q^2$ is the virtuality of the photon) but large $t$ (4-momentum transfer
squared to the knocked out proton), which represents an as-yet unexplored
kinematic region in the search for CT effects in electroproduction of vector
mesons. Calculations are also presented for the reaction $\gamma^*+D\to
J/\psi+p+n$ at JLab energies in order to determine the feasibility of measuring
the elastic $J/\psi$-nucleon scattering amplitude and/or scattering length. It
is found that it may be possible to measure the $J/\psi$-nucleon scattering
amplitude at lower energies than previous measurements, but the scattering
length cannot be measured.

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The categories of this paper are: hep-ex
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The categories of this paper are: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: nlin
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The categories of this paper are: adap-org
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The categories of this paper are: hep-lat
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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
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The categories of this paper are: solv-int
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The categories of this paper are: physics
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The categories of this paper are: astro-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: patt-sol
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The categories of this paper are: eess