Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exclusive electroproduction of the rho+ meson on the proton @ CLAS   We present preliminary results of the exclusive electroproduction of rho+ on
the proton at CLAS. We discuss the interpretation of the cross sections in
terms of t-channel Reggeon exchanges and in terms of Generalized Parton
Distributions (GPDs) formalism.

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The categories of this paper are: hep-th
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The categories of this paper are: atom-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: eess
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The categories of this paper are: physics
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The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: econ
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: ao-sci
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The categories of this paper are: chao-dyn