Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Prediction of exotic doubly charmed baryons within chiral effective
  field theory   In this work we study the possible QCD exotic states in the doubly charmed
baryon sector. Within chiral effective theory, it is predicted that several
excited baryons result from the $S$-wave scattering of ground-state doubly
charmed baryons ($\Xi_{cc}^{++}, \Xi_{cc}^{+}, \Omega_{cc}^{+}$) and light
pseudoscalar mesons ($\pi, K, \eta$). The excited doubly charmed baryons can be
classified by the strangeness ($S$) and isospin ($I$) quantum numbers. Two of
the excited states are clearly exotic, in the sense that they cannot be
explained by the conventional baryons with three quarks, since their quantum
numbers are $(S,I)=(1,0)$ and $(-1,1)$. Similar to the charmed scalar meson
$D_{s0}^{*}(2317)$ in $DK$ scattering and the hyperon $\Lambda(1405)$ in
$\bar{K}N$ scattering, one bound state below the $\Xi_{cc} \bar{K}$ threshold
is predicted in the $(S,I)=(-1,0)$ channel. In addition, two resonant
structures are found in the $\Xi_{cc}\pi, \Xi_{cc}\eta$ and $\Omega_{cc} K$
coupled-channel scattering with $(S,I)=(0,1/2)$. The corresponding pole
positions and coupling strengths of the excited doubly charmed baryons are
given. The scattering lengths of the ground-state doubly charmed baryons and
light pseudoscalar mesons are also predicted. The current study may provide
useful guides for future experimental measurements and lattice simulations.

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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: physics
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The categories of this paper are: alg-geom
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The categories of this paper are: plasm-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat
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The categories of this paper are: gr-qc
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The categories of this paper are: math
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The categories of this paper are: econ
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The categories of this paper are: stat
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex