Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exclusive Processes: Tests of Coherent QCD Phenomena and Nucleon
  Substructure at CEBAF -   Measurements of exclusive processes such as electroproduction,
photoproduction, and Compton scattering are among the most sensitive probes of
proton structure and coherent phenomena in quantum chromodynamics. The
continuous electron beam at CEBAF, upgraded in laboratory energy to 10--12 GeV,
will allow a systematic study of exclusive, semi-inclusive, and inclusive
reactions in a kinematic range well-tuned to the study of fundamental nucleon
and nuclear substructure. I also discuss the potential at CEBAF for studying
novel QCD phenomena at the charm production threshold, including the possible
production of nuclear-bound quarkonium.

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The categories of this paper are: nucl-th
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The categories of this paper are: gr-qc
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The categories of this paper are: eess
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The categories of this paper are: q-fin
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The categories of this paper are: physics
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The categories of this paper are: cmp-lg
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The categories of this paper are: math
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The categories of this paper are: econ
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The categories of this paper are: ao-sci
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The categories of this paper are: adap-org
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The categories of this paper are: quant-ph
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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: stat
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex