Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strong Decays of the Orbitally Excited Scalar $D^{*}_{0}$ Mesons   We calculate the two-body strong decays of the orbitally excited scalar
mesons $D_0^*(2400)$ and $D_J^*(3000)$ by using the relativistic Bethe-Salpeter
(BS) method. $D_J^*(3000)$ was observed recently by the LHCb Collaboration, the
quantum number of which has not been determined yet. In this paper, we assume
that it is the $0^+(2P)$ state and obtain the transition amplitude by using the
PCAC relation, low-energy theorem and effective Lagrangian method. For the $1P$
state, the total widths of $D_0^*(2400)^{0}$ and $ D_0^*(2400)^+$ are 226 MeV
and 246 MeV, respectively. With the assumption of $0^+(2P)$ state, the widths
of $D_J^*(3000)^0$ and $D_J^*(3000)^+$ are both about 131 MeV, which is close
to the present experimental data. Therefore, $D_J^*(3000)$ is a strong
candidate for the $2^3P_0$ state.

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The categories of this paper are: alg-geom
1
The categories of this paper are: cs
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The categories of this paper are: adap-org
3
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: econ
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The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
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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-lat
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The categories of this paper are: solv-int
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: patt-sol