Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dielectron widths of the S-, D-vector bottomonium states   The dielectron widths of $\Upsilon(nS) (n=1,...,7)$ and vector decay
constants are calculated using the Relativistic String Hamiltonian with a
universal interaction. For $\Upsilon(nS) (n=1,2,3)$ the dielectron widths and
their ratios are obtained in full agreement with the latest CLEO data. For
$\Upsilon(10580)$ and $\Upsilon(11020)$ a good agreement with experiment is
reached only if the 4S--3D mixing (with a mixing angle $\theta=27^\circ\pm
4^\circ$) and 6S--5D mixing (with $\theta=40^\circ\pm 5^\circ$) are taken into
account. The possibility to observe higher "mixed $D$-wave" resonances,
$\tilde\Upsilon(n {}^3D_1)$ with $n=3,4,5$ is discussed. In particular,
$\tilde\Upsilon(\approx 11120)$, originating from the pure $5 {}^3D_1$ state,
can acquire a rather large dielectron width, $\sim 130$ eV, so that this
resonance may become manifest in the $e^+e^-$ experiments. On the contrary, the
widths of pure $D$-wave states are very small, $\Gamma_{ee}(n{}^3 D_1) \leq 2$
eV.

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The categories of this paper are: alg-geom
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The categories of this paper are: cmp-lg
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
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The categories of this paper are: astro-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
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The categories of this paper are: math-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: quant-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: cond-mat