Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Recoupling Mechanism for exotic mesons and baryons   The infinite chain of transitions of one pair of mesons (channel I) into
another pair of mesons (channel II) can produce bound states and resonances in
both channels even if no interactions inside channels exist. These resonances
which can occur also in meson-baryon channels are called channel-coupling (CC)
resonances. A new mechanism of CC resonances is proposed where transitions
occur due to a rearrangement of confining strings inside each channel -- the
recoupling mechanism. The amplitude of this recoupling mechanism is expressed
via overlap integrals of the wave functions of participating mesons (baryons).
The explicit calculation with the known wave functions yields the peak at $E=
4.12$ GeV for the transitions $J/\psi + \phi \leftrightarrow D^*_s + \bar D^*_s
$, which can be associated with $\chi_{c1}(4140)$, and a narrow peak at $3.98$
GeV with the width $10$ MeV for the transitions $D^{-}_s + D^*_0
\leftrightarrow J/\psi + K^{*-},$ which can be associated with the recently
discovered $Z_{cs}(3985)$.

37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex