Preliminary results on CMD-3 measurement of e+e−→ π+π− cross section

Fedor Ignatov; I.B. Logashenko; R.R. Akhmetshin; A.N. Amirkhanov; A.V. Anisenkov; V.M. Aulchenko; V.S. 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; V.L. Ivanov; S.V. Karpov; A.S. Kasaev; V.F. Kazanin; A.A. Korobov; I.A. Koop; A.N. Kozyrev; E.A. Kozyrev; P.P. Krokovny; A.E. Kuzmenko; A.S. Kuzmin; P.A. Lukin; A.P. Lysenko; K.Yu. Mikhailov; V.S. Okhapkin; E.A. Perevedentsev; Yu.N. Pestov; A.S. Popov; G.P. Razuvaev; Yu.A. Rogovsky; A.A. Ruban; N.M. Ryskulov; A.E. Ryzhenenkov; V.E. Shebalin; D.N. Shemyakin; B.A. Shwartz; D.B. Shwartz; A.L. Sibidanov; Yu.M. Shatunov; E.P. Solodov; A.A. Talyshev; A.I. Vorobiov; Yu.V. Yudin

doi:10.1051/epjconf/201921802006

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Proceedings

Open Access

EPJ Web of Conferences 218, 02006 (2019)
https://doi.org/10.1051/epjconf/201921802006

Preliminary results on CMD-3 measurement of e⁺e⁻→ π⁺π⁻ cross section

Fedor Ignatov¹^*, I.B. Logashenko¹^,2, R.R. Akhmetshin¹, A.N. Amirkhanov¹^,2, A.V. Anisenkov¹^,2, V.M. Aulchenko¹^,2, V.S. Banzarov¹, N.S. Bashtovoy¹, D.E. Berkaev¹^,2, A.E. Bondar¹^,2, A.V. Bragin¹, S.I. Eidelman¹^,2, 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, V.L. Ivanov¹^,2, S.V. Karpov¹, A.S. Kasaev¹, V.F. Kazanin¹^,2, A.A. Korobov¹^,2, I.A. Koop¹, A.N. Kozyrev¹^,2, E.A. Kozyrev¹^,2, P.P. Krokovny¹^,2, A.E. Kuzmenko¹^,2, A.S. Kuzmin¹^,2, P.A. Lukin¹^,2, A.P. Lysenko¹, K.Yu. Mikhailov¹^,2, V.S. Okhapkin¹, E.A. Perevedentsev¹^,2, Yu.N. Pestov¹, A.S. Popov¹^,2, G.P. Razuvaev¹^,2, Yu.A. Rogovsky¹^,2, A.A. Ruban¹, N.M. Ryskulov¹, A.E. Ryzhenenkov¹^,2, V.E. Shebalin¹^,2, D.N. Shemyakin¹^,2, B.A. Shwartz¹^,2, D.B. Shwartz¹^,2, A.L. Sibidanov⁴, Yu.M. Shatunov¹, E.P. Solodov¹^,2, A.A. Talyshev¹^,2, A.I. Vorobiov¹ 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, British Columbia, Canada V8W 3P6

^* e-mail: ignatov@inp.nsk.su

Published online: 18 October 2019

Abstract

The CMD-3 detector has been successfully collecting data at the electron-positron collider VEPP-2000 since December 2010. The first scan below 1 GeV for a π⁺π⁻ measurement was performed in 2013. The collected data sample corresponds to about 18 pb⁻¹ of integrated luminosity in this energy range. Analysis of the e⁺e⁻→ π⁺π⁻ cross section is in progress. Status of this measurement are presented.

© The Authors, published by EDP Sciences, 2019

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.