Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coherent Photo- and Leptoproduction of Vector Mesons from Deuterium   We discuss the coherent photo- and leptoproduction of vector mesons from
deuterium at intermediate (virtual) photon energies, 3 GeV < nu < 30 GeV. These
processes provide several options to explore the space-time evolution of small
size quark-gluon configurations. Furthermore, we study the dependence of the
production cross section on the energy and momentum transfer t due to
variations of the finite longitudinal interaction length. Kinematic regions are
determined where the production cross section is most sensitive to the final
state interaction of the initially produced hadronic wave packet. For
unpolarized deuteron targets this double scattering contribution can be
investigated mainly at large values of the momentum transfer t. For polarized
targets kinematic windows sensitive to double scattering are available also at
moderate t. We suggest several methods for an investigation of color coherence
effects at intermediate energies.

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The categories of this paper are: hep-lat
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The categories of this paper are: chao-dyn
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The categories of this paper are: astro-ph
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The categories of this paper are: solv-int
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The categories of this paper are: funct-an
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The categories of this paper are: stat
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The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
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The categories of this paper are: bayes-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: math
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The categories of this paper are: eess
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The categories of this paper are: patt-sol
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The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci