24 February 2014 to 1 March 2014
Asia/Novosibirsk timezone

Luminosity measurement with CMD-3 detector at the VEPP-2000 e+e- collider

25 Feb 2014, 17:15
Poster Colliders and Detector Integration Posters


Gennadiy Fedotovich (Budker Institute of nuclear physics)


Preliminary results of the luminosity measurement in a broad energy range are presented. The analysis is based on the integrated luminosity ~60 pb⁻¹. For the energy range smaller 320 MeV the luminosity was determined using two processes: e⁺e⁻ → e⁺e⁻, μ⁺μ⁻. As for higher energies up to 2 GeV the luminosity determination was based on study processes e⁺e⁻ → e⁺e⁻, γγ. The applying two well known QED processes provided cross-check possibility, that in turn, allowed more correctly estimate the systematics errors. Currently the systematics for luminosity is estimated as 0.5% ÷ 1% for different energy region.

Primary author

Gennadiy Fedotovich (Budker Institute of nuclear physics)

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