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Measurement of the DAΦNE luminosity with the KLOE detector using large angle Bhabha scattering

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Abstract

We describe the method of measuring the integrated luminosity of the e+e- collider DAΦNE, the Frascati φ-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-→e+e-(γ) cross section is calculated using different event generators which account for the \(\mathcal{O}(\alpha)\) radiative initial and final state corrections, and the φ 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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Ambrosino, F., Antonelli, A., Antonelli, M. et al. Measurement of the DAΦNE luminosity with the KLOE detector using large angle Bhabha scattering. Eur. Phys. J. C 47, 589–596 (2006). https://doi.org/10.1140/epjc/s2006-02617-4

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  • DOI: https://doi.org/10.1140/epjc/s2006-02617-4

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