Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Residual correlations between decay products of $\pi^0\pi^0$ and
  $p\Sigma^0$ systems   Residual correlations between decay products due to a combination of both
correlations between parents at small relative velocities and small decay
momenta are discussed. Residual correlations between photons from pion decays
are considered as a new possible source of information on direct photon
fraction. Residual correlations in $p\gamma$ and $p\Lambda$ systems due to
$p\Sigma^0$ interaction in final state are predicted based on the $p\Sigma^0$
low energy scattering parameters deduced from the spin-flavour SU$_6$ model by
Fujiwara et al. including effective meson exchange potentials and explicit
flavour symmetry breaking to reproduce the properties of the two-nucleon system
and the low-energy hyperon-nucleon cross section data. The $p\gamma_{\Sigma^0}$
residual correlation is concentrated at $k^* \approx 70$ Mev/$c$ and its shape
and intensity appears to be sensitive to the scattering parameters and
space-time dimensions of the source. The $p\Lambda_{\Sigma^0}$ residual
correlation recovers the negative parent $p\Sigma^0$ correlation for $k^* > 70$
Mev/$c$. The neglect of this negative residual correlation would lead to the
underestimation of the parent $p\Lambda$ correlation effect and to an
overestimation of the source size.

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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas