Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Study of the reaction $\gamma p\to p\pi^0\eta$   The reaction $\gamma p\to p\pi^0\eta$ has been studied with the CBELSA
detector at the tagged photon beam of the Bonn electron stretcher facility. The
reaction shows contributions from $\Delta^+(1232)\eta$, $N(1535)^+\pi^0$ and
$pa_0(980)$ as intermediate states. A partial wave analysis suggests that the
reaction proceeds via formation of six $\Delta$ resonances,
$\Delta(1600)P_{33}$, $\Delta(1920)P_{33}$, $\Delta(1700)D_{33}$,
$\Delta(1940)D_{33}$, $\Delta(1905)F_{35}$, $\Delta(2360)D_{33}$, and two
nucleon resonances $N(1880)P_{11}$ and $N(2200)P_{13}$, for which pole
positions and decay branching ratios are given.

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The categories of this paper are: gr-qc
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The categories of this paper are: econ
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
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The categories of this paper are: adap-org
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: bayes-an
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The categories of this paper are: physics
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph