Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exclusive open strangeness production in the $pp \to pp K^{+} K^{-}$
  reaction at high energies and a measurement of scalar $\chi_{c0}$ meson   We discuss the results of exclusive $p p \to p p K^{+} K^{-}$ reaction at
high energies which constitutes an irreducible background to three-body
processes $p p \to p p M$, where $M=\phi$, $f_{2}(1275)$, $f_{0}(1500)$,
$f_{2}'(1525)$, $\chi_{c0}$. We consider central diffractive contribution
mediated by Pomeron and Reggeon exchanges including absorption effects due to
proton-proton interaction and kaon-kaon rescattering. We make predictions for
future experiments at RHIC, Tevatron and LHC. Differential distributions in
invariant two-kaon mass, kaon rapidities and transverse momenta of kaons are
presented. We discuss a measurement of exclusive production of scalar
$\chi_{c0}$ meson in the proton-(anti)proton collisions via $\chi_{c0} \to
K^{+}K^{-}$ decay. The corresponding amplitude for exclusive central
diffractive $\chi_{c0}$ meson production is calculated within the
$k_{t}$-factorization approach.

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The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an