Measurement of e+e− → π+π− cross section at CMD-3

I.B. Logashenko; R.R. Akhmetshin; A.V. Anisenkov; V.M. Aulchenko; V.S. Banzarov; N.S. Bashtovoy; D.E. Berkaev; A.V. Bragin; S.I. Eidelman; D.A. Epifanov; L.B. Epshteyn; A.L. Erofeev; G.V. Fedotovich; S.E. Gayazov; A.A. Grebenuk; D.N. Grigoriev; E.M. Gromov; F.V. Ignatov; S.V. Karpov; V.F. Kazanin; B.I. Khazin; A.N. Kirpotin; I.A. Koop; O.A. Kovalenko; 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; Yu.N. Pestov; E.A. Perevedentsev; A.S. Popov; G.P. Razuvaev; Yu.A. Rogovsky; A.L. Romanov; A.A. Ruban; N.M. Ryskulov; A.E. Ryzhenenkov; V.E. Shebalin; D.N. Shemyakin; B.A. Shwartz; D.B. Shwartz; A.L. Sibidanov; P.Yu. Shatunov; Yu.M. Shatunov; E.P. Solodov; V.M. Titov; A.A. Talyshev; A.I. Vorobiov; Yu.V. Yudin; Yu.M. Zharinov

doi:10.1051/epjconf/20147200013

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Open Access

EPJ Web of Conferences 72, 00013 (2014)
https://doi.org/10.1051/epjconf/20147200013

Measurement of e⁺e⁻ → π⁺π⁻ cross section at CMD-3

I.B. Logashenko¹^,2^a, R.R. Akhmetshin¹, A.V. Anisenkov¹, V.M. Aulchenko¹^,2, V.S. Banzarov¹, N.S. Bashtovoy¹, D.E. Berkaev¹^,2, A.V. Bragin¹, S.I. Eidelman¹^,2, D.A. Epifanov⁵, L.B. Epshteyn¹^,3, A.L. Erofeev¹, G.V. Fedotovich¹^,2, S.E. Gayazov¹^,2, A.A. Grebenuk¹^,2, D.N. Grigoriev¹^,2^,3, E.M. Gromov¹, F.V. Ignatov¹, S.V. Karpov¹, V.F. Kazanin¹^,2, B.I. Khazin¹^,2, A.N. Kirpotin¹, I.A. Koop¹^,2, O.A. Kovalenko¹^,2, A.N. Kozyrev¹, E.A. Kozyrev¹^,2, P.P. Krokovny¹^,2, A.E. Kuzmenko¹^,3, A.S. Kuzmin¹, P.A. Lukin¹^,2, A.P. Lysenko¹, K.Yu. Mikhailov¹^,2, V.S. Okhapkin¹, Yu.N. Pestov¹, E.A. Perevedentsev¹^,2, A.S. Popov¹^,2, G.P. Razuvaev¹, Yu.A. Rogovsky¹, A.L. Romanov¹, A.A. Ruban¹, N.M. Ryskulov¹, A.E. Ryzhenenkov¹^,2, V.E. Shebalin¹, D.N. Shemyakin¹^,2, B.A. Shwartz¹^,2, D.B. Shwartz¹^,2, A.L. Sibidanov⁴, P.Yu. Shatunov¹, Yu.M. Shatunov¹, E.P. Solodov¹^,2, V.M. Titov¹, A.A. Talyshev¹^,2, A.I. Vorobiov¹, Yu.V. Yudin¹ and Yu.M. Zharinov¹

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 Sydney, School of Physics, Falkiner High Energy Physics, NSW 2006, Sydney, Australia
⁵ University of Tokyo, Department of Physics, 7-3-1 Hongo Bunkyo-ku Tokyo, 113-0033, Japan

^a e-mail: I.B.Logashenko@inp.nsk.su

Published online: 6 May 2014

Abstract

Regular operation of the VEPP-2000 electron-positron collider started at the end of 2010 and about 60 pb⁻¹ were collected so far by the CMD-3 detector in the whole available c.m. energy range from 0.32 GeV to 2.0 GeV. One of the main goals of the experiments at VEPP-2000 is a sub-percent measurement of the e⁺e⁻ → π⁺π⁻ cross-section. Here we present the overview of the data analysis techniques and the preliminary results of this measurement.

© Owned by the authors, published by EDP Sciences, 2014

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