Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A measurement of branching ratios of $D^+$ and $D^+_s$ hadronic decays
  to four-body final states containing a $K_S$   We have studied hadronic four-body decays of $D^+$ and $D^+_s$ mesons with a
$K_S$ in the final state using data recorded during the 1996-1997 fixed-target
run at Fermilab high energy photoproduction experiment FOCUS. We report a new
branching ratio measurement of $\Gamma(D^+\to K_S K^-\pi^+\pi^+)/\Gamma(D^+\to
K_S \pi^+\pi^+\pi^-)=0.0768\pm0.0041\pm0.0032$. We make the first observation
of three new decay modes with branching ratios $\Gamma(D^+\to K_S
K^+\pi^+\pi^-)/\Gamma(D^+\to K_S \pi^+\pi^+\pi^-)=0.0562\pm0.0039\pm0.0040$,
$\Gamma(D^+\to\K_S K^+ K^-\pi^+)/\Gamma(D^+\to K_S
\pi^+\pi^+\pi^-)=0.0077\pm0.0015\pm0.0009$, and $\Gamma(D^+_s\to K_S
K^+\pi^+\pi^-)/\Gamma(D^+_s\to K_S K^-\pi^+\pi^+)=0.586\pm0.052\pm0.043$, where
in each case the first error is statistical and the second error is systematic.

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The categories of this paper are: physics
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The categories of this paper are: q-fin
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The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
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The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: cs
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: adap-org