Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The interaction of glueball and heavy-light flavoured meson in
  holographic QCD   We construct the D4/D8 brane configuration in the Witten-Sakai-Sugimoto model
by introducing a pair of heavy flavour brane with a heavy-light open string.
The multiplets created by the heavy-light string acquire mass due to the finite
separation of the heavy and light flavour branes thus they could be identified
as the heavy-light meson fields in this model. On the other hand the glueball
field is identified as the gravitational fluctuations carried by the close
string in the bulk, so this model is able to describe the interaction of
glueball and heavy-light meson through the open-close string interaction in
gauge-gravity duality. We explicitly derive the effective action for the
various glueballs and heavy-light mesons then numerically evaluate the
associated coupling constants. Afterwards the decay widths of various glueballs
to the lowest heavy-light meson, which is identified as $D^{0}$ meson, are
calculated by using our effective action. This work extends the previous
investigations of glueball in holographic QCD and it is also a further
prediction of glueball-meson interaction.

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The categories of this paper are: cs
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The categories of this paper are: math
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The categories of this paper are: cond-mat
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The categories of this paper are: plasm-ph
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ph
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The categories of this paper are: physics
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The categories of this paper are: atom-ph
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The categories of this paper are: q-bio
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The categories of this paper are: ao-sci
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The categories of this paper are: astro-ph
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
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The categories of this paper are: stat
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The categories of this paper are: eess
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The categories of this paper are: q-fin