Current status of luminosity measurement with the CMD-3 detector at the VEPP-2000 collider

A.E. Ryzhenenkov; R.R. Akhmetshin; A.N. Amirkhanov; A.V. Anisenkov; V.M. Aulchenko; V.Sh. Banzarov; N.S. Bashtovoy; D.E. Berkaev; A.E. Bondar; A.V. Bragin; S.I. Eidelman; D.A. Epifanov; L.B. Epshteyn; A.L. Erofeev; G.V. Fedotovich; S.E. Gayazov; A.A. Grebenuk; S.S. Gribanov; D.N. Grigoriev; F.V. Ignatov; V.L. Ivanov; S.V. Karpov; V.F. Kazanin; I.A. Koop; A.A. Korobov; A.N. Kozyrev; E.A. Kozyrev; P.P. Krokovny; A.E. Kuzmenko; A.S. Kuzmin; I.B. Logashenko; P.A. Lukin; K.Yu. Mikhailov; V.S. Okhapkin; A.V. Otboev; E.A. Perevedentsev; Yu.N. Pestov; A.S. Popov; G.P. Razuvaev; A.A. Ruban; N.M. Ryskulov; Yu.M. Shatunov; P.Yu. Shatunov; V.E. Shebalin; D.N. Shemyakin; B.A. Shwartz; D.B. Shwartz; A.L. Sibidanov; E.P. Solodov; A.A. Talyshev; S.S. Tolmachev; A.I. Vorobiov; Yu.V. Yudin

doi:10.1051/epjconf/201921204011

Proceedings

Open Access

EPJ Web of Conferences 212, 04011 (2019)
https://doi.org/10.1051/epjconf/201921204011

Current status of luminosity measurement with the CMD-3 detector at the VEPP-2000 collider

A.E. Ryzhenenkov¹^,2^*, R.R. Akhmetshin¹, A.N. Amirkhanov¹^,2, A.V. Anisenkov¹^,2, V.M. Aulchenko¹^,2, V.Sh. Banzarov¹, N.S. Bashtovoy¹, D.E. Berkaev¹^,2, A.E. Bondar¹^,2, A.V. Bragin¹, S.I. Eidelman¹^,2^,5, D.A. Epifanov¹^,2, L.B. Epshteyn¹^,2^,3, A.L. Erofeev¹^,2, G.V. Fedotovich¹^,2, S.E. Gayazov¹^,2, A.A. Grebenuk¹^,2, S.S. Gribanov¹^,2, D.N. Grigoriev¹^,2^,3, F.V. Ignatov¹, V.L. Ivanov¹^,2, S.V. Karpov¹, V.F. Kazanin¹^,2, I.A. Koop¹^,2, A.A. Korobov¹^,2, A.N. Kozyrev¹^,3, E.A. Kozyrev¹^,2, P.P. Krokovny¹^,2, A.E. Kuzmenko¹, A.S. Kuzmin¹^,2, I.B. Logashenko¹^,2, P.A. Lukin¹^,2, K.Yu. Mikhailov¹, V.S. Okhapkin¹, A.V. Otboev¹, E.A. Perevedentsev¹^,2, Yu.N. Pestov¹, A.S. Popov¹^,2, G.P. Razuvaev¹^,2, A.A. Ruban¹, N.M. Ryskulov¹, Yu.M. Shatunov¹, P.Yu. Shatunov¹, V.E. Shebalin¹^,2, D.N. Shemyakin¹^,2, B.A. Shwartz¹^,2, D.B. Shwartz¹^,2, A.L. Sibidanov¹^,4, E.P. Solodov¹^,2, A.A. Talyshev¹^,2, S.S. Tolmachev¹, A.I. Vorobiov¹^,2 and Yu.V. Yudin¹^,2

¹ 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: tem_mc@mail.ru

Published online: 17 June 2019

Abstract

The CMD-3 detector started data taking at the electron-positron collider VEPP-2000 [1] 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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