Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Heavy quark symmetry in strong decays of P-wave heavy-light mesons   Heavy quark symmetry and its breaking in strong decays of P-wave heavy-light
mesons are examined within the EHQ's method. The consistence of theory with
experiments indicates that the breaking of heavy quark symmetry in the two-body
strong decays of these mesons is not large. The relation between the EHQ's
method and the $^3P_0$ model is investigated, and the phenomenological
transition strengths $\mathcal {F}^{j_q,j'_q}_{j_h,l}(0)$ of the P-wave
heavy-light mesons within the EHQ method are analytically derived within the
$^3P_0$ model.

22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex