학술논문
Current status of luminosity measurement with the CMD-3 detector at the VEPP-2000 collider
Document Type
article
Author
Ryzhenenkov A.E.; Akhmetshin R.R.; Amirkhanov A.N.; Anisenkov A.V.; Aulchenko V.M.; Banzarov V.Sh.; Bashtovoy N.S.; Berkaev D.E.; Bondar A.E.; Bragin A.V.; Eidelman S.I.; Epifanov D.A.; Epshteyn L.B.; Erofeev A.L.; Fedotovich G.V.; Gayazov S.E.; Grebenuk A.A.; Gribanov S.S.; Grigoriev D.N.; Ignatov F.V.; Ivanov V.L.; Karpov S.V.; Kazanin V.F.; Koop I.A.; Korobov A.A.; Kozyrev A.N.; Kozyrev E.A.; Krokovny P.P.; Kuzmenko A.E.; Kuzmin A.S.; Logashenko I.B.; Lukin P.A.; Mikhailov K.Yu.; Okhapkin V.S.; Otboev A.V.; Perevedentsev E.A.; Pestov Yu.N.; Popov A.S.; Razuvaev G.P.; Ruban A.A.; Ryskulov N.M.; Shatunov Yu.M.; Shatunov P.Yu.; Shebalin V.E.; Shemyakin D.N.; Shwartz B.A.; Shwartz D.B.; Sibidanov A.L.; Solodov E.P.; Talyshev A.A.; Tolmachev S.S.; Vorobiov A.I.; Yudin Yu.V.
Source
EPJ Web of Conferences, Vol 212, p 04011 (2019)
Subject
Language
English
ISSN
2100-014X
84959991
84959991
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%.