Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The two-body open charm decays of $Z^+(4430)$   The two-body open charm decays $Z^+(4430)\to D^{+}\bar{D}^{*0},
D^{*+}\bar{D}^{0}, D^{*+}\bar{D}^{*0}$ occur through the re-scattering
mechanism and their branching ratios are strongly suppressed if $Z^+(4430)$ is
a $D_1\bar D^*$ molecular state. In contrast, $Z^+(4430)$ falls apart into
these modes easily with large phase space and they become the main decay modes
if $Z^+(4430)$ is a tetraquark state. Experimental search of these two-body
open charm modes and the hidden charm mode $\chi_{cJ}\rho$ will help
distinguish different theoretical schemes.

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The categories of this paper are: q-bio
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The categories of this paper are: quant-ph
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The categories of this paper are: econ
28
The categories of this paper are: alg-geom
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The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
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The categories of this paper are: supr-con
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The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
2
The categories of this paper are: math
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The categories of this paper are: nlin
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: physics
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The categories of this paper are: stat
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The categories of this paper are: nucl-ex