Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the reaction $\gamma p \TO K^ + \Lambda(1520)$ at photon
  energies up to 2.65 GeV   The reaction $\gamma p \TO K^+\Lambda(1520)$ was measured in the energy range
from threshold to 2.65 GeV with the SAPHIR detector at the electron stretcher
facility ELSA in Bonn. The $\Lambda(1520)$ production cross section was
analyzed in the decay modes $pK^-$, $n \bar{K}^0$, $\Sigma^{\pm}\pi^{\mp}$, and
$\Lambda\pi^+\pi^-$ as a function of the photon energy and the squared
four-momentum transfer $t$. While the cross sections for the inclusive
reactions rise steadily with energy, the cross section of the process $\gamma p
\TO K^+\Lambda(1520)$ peaks at a photon energy of about 2.0 GeV, falls off
exponentially with $t$, and shows a slope flattening with increasing photon
energy. The angular distributions in the $t$-channel helicity system indicate
neither a $K$ nor a $K^\star$ exchange dominance. The interpretation of the
$\Lambda(1520)$ as a $\Sigma(1385)\pi$ molecule is not supported.

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The categories of this paper are: hep-ph
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The categories of this paper are: eess
25
The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
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The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
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The categories of this paper are: atom-ph
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The categories of this paper are: stat