Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Production of $X(3872)$ at High Multiplicity   The dependence of the production of the $X(3872)$ meson on the hadron
multiplicity in $pp$ collisions has been used as evidence against $X$ being a
charm-meson molecule. The argument is based in part on the incorrect assumption
that the cross section for the breakup of $X$ by scattering with comovers can
be approximated by a geometric cross section inversely proportional to the
binding energy of $X$. The breakup cross section should instead be approximated
by the probability-weighted sum of the cross sections for the scattering of
comoving pions from the charm-meson constituents of $X$, which is insensitive
to the binding energy. A simple modification of the comover interaction model
gives excellent fits to the data from the LHCb collaboration on the
multiplicity dependence of the production of $X$ and $\psi(2S)$ using
parameters compatible with $X$ being a loosely bound charm-meson molecule.

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The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg