Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radiative Decays of Excited Vector Mesons   Radiative decays of the $1^3S_1$ radial and $1^3D_1$ orbital excitations of
the $\rho$, $\omega$ and $\phi$ are calculated in the quark model, using wave
functions obtained variationally from the Hamiltonian with standard quark-model
parameters. The larger radiative widths should be measurable at new
high-intensity facilities being proposed, and in some cases may be measurable
in data from existing experiments. The radiative decays are a strong
discriminator between the $1^3S_1$ and $1^3D_1$ excitations, and can also be
used to provide unique information about the decay products.

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The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
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The categories of this paper are: mtrl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
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The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
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The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
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The categories of this paper are: cmp-lg