Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the DA$\Phi$NE luminosity with the KLOE detector using
  large angle Bhabha scattering   We describe the method of measuring the integrated luminosity of the $e^+e^-$
collider DA$\Phi$NE, the Frascati $\phi-$factory. The measurement is done with
the KLOE detector selecting large angle Bhabha scattering events and
normalizing them to the effective cross section. The $e^+e^- \to
e^+e^-(\gamma)$ cross section is calculated using different event generators
which account for the $O(\alpha)$ radiative initial and final state
corrections, and the $\phi$ resonance contribution. The accuracy of the
measurement is 0.6%, where 0.3% comes from systematic errors related to the
event counting and 0.5% from theoretical evaluations of the cross section.

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The categories of this paper are: eess
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The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: atom-ph
2
The categories of this paper are: math
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: nlin
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The categories of this paper are: stat
14
The categories of this paper are: math-ph