EPJ Web Conf.
Volume 212, 2019The 12th International Workshop on e+e- Collisions from Phi to Psi (PhiPsi 2019)
|Number of page(s)||4|
|Section||e+e- Annihilation and Gamma-gamma Physics|
|Published online||17 June 2019|
Current status of luminosity measurement with the CMD-3 detector at the VEPP-2000 collider
Budker Institute of Nuclear Physics, SB RAS, Novosibirsk, 630090, Russia
2 Novosibirsk State University, Novosibirsk, 630090, Russia
3 Novosibirsk State Technical University, Novosibirsk, 630092, Russia
4 University of Victoria, Victoria, BC, Canada V8W 3P6
5 Lebedev Physical Institute RAS, Moscow, 119333, Russia
* e-mail: firstname.lastname@example.org
Published online: 17 June 2019
The CMD-3 detector started data taking at the electron-positron collider VEPP-2000  in December 2010. The collected data sample corresponds to an integrated luminosity of 87 pb−1 in the c.m. energy range from 1.06 up to 2 GeV and 91 pb−1 from 0.32 to 1.06 GeV. The integrated luminosity was measured by counting e+e−→ e+e− and e+e−→ γγ events, allowing additional photons in the final state. Preliminary results of the luminosity measurement are presented for various energy ranges and its accuracy is estimated to be 1%.
© The Authors, published by EDP Sciences, 2019
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