Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing the Structure of Nucleons in the Resonance Region with CLAS at
  Jefferson Lab   The physics of electromagnetic excitation of nucleon resonances and of their
relevance in nucleon structure studies are discussed. Preliminary data from the
CLAS detector on the N-Delta(1232) transition multipoles, the helicity
amplitudes of the N*(1535), and the search for so-called "missing resonances"
at Jefferson Lab are presented.

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The categories of this paper are: physics
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
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The categories of this paper are: eess
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex