Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Property of Chiral Scalar and Axial-Vector Mesons in Heavy-Light Quark
  Systems   Recently we have proposed a new level-classification scheme of hadrons with a
manifestly covariant framework. In this scheme the requirement of chiral
symmetry on the light quark leads to a prediction of existence of new type of
scalars X_B, X_D and axial-vectors X_B^*,X_D^* as the chiral partners of ground
state pseudoscalar B,D and vector B^*,D^* mesons, respectively. They belong to
``relativistic S-wave states,'' and are discriminated from the conventional
P-wave mesons with j_q=1/2 appearing in the heavy quark effective theory. In
this talk we examine the properties of these chiral mesons: The mass-splittings
between the respective chiral partners are predicted to be equal, and the decay
widths of one pion emission of X_B, X_D, X_B^* and X_D^* are to take the same
value due to both chiral and heavy quark symmetries. Some experimental
indications for existence of X_B and X_D^* are also given, which are consistent
with the above prediction.

35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex