MEASUREMENT OF THE e+e− →π+π−2π0η CROSS SECTION BELOW √s = 2 GeV

M. N. Achasov; Ачасов М. Н.; A. Yu. Barnyakov; Барняков А. Ю.; K. I. Beloborodov; Белобородов К. И.; A. V. Berdyugin; Бердюгин А. В.; D. E. Berkaev; Беркаев Д. Е.; A. G. Bogdanchikov; Богданчиков А. Г.; A. A. Botov; Ботов А. А.; V. S. Denisov; Денисов В. С.; T. V. Dimova; Димова Т. В.; V. P. Druzhinin; Дружинин В. П.; V. N. Zhabin; Жабин В. Н.; V. V. Zhulanov; Жуланов В. В.; I. M. Zemlyansky; Землянский И. М.; L. V. Kardapoltsev; Кардапольцев Л. В.; A. A. Kattsin; Катцин А. А.; A. N. Kirpotin; Кирпотин А. Н.; D. P. Kovrizhin; Коврижин Д. П.; I. A. Koop; Кооп И. А.; A. A. Korol; Король А. А.; A. S. Kupich; Купич А. С.; A. P. Kryukov; Крюков А. П.; A. P. Lysenko; Лысенко А. П.; N. A. Melnikova; Мельникова Н. А.; N. Yu. Muchnoy; Мучной Н. Ю.; A. E. Obrazovsky; Образовский А. Е.; E. V. Pakhtusova; Пахтусова Е. В.; E. A. Perevedentsev; Переведенцев Е. А.; K. V. Pugachev; Пугачев К. В.; Yu. A. Rogovsky; Роговский Ю. А.; S. I. Serednyakov; Середняков С. И.; Z. K. Silagadze; Силагадзе З. К.; I. K. Surin; Сурин И. К.; M. V. Timoshenko; Тимошенко М. В.; Yu. V. Usov; Усов Ю. В.; L. B. Fomin; Фомин Л. Б.; A. G. Kharlamov; Харламов А. Г.; Yu. M. Shatunov; Шатунов Ю. М.; D. A. Shtol; Штоль Д. А.; E. A. Eminov; Эминов Э. А.

doi:10.31857/S0044002725010073

MEASUREMENT OF THE e+e− →π+π−2π0η CROSS SECTION BELOW √s = 2 GeV

Authors: Achasov M.N.¹^,2, Barnyakov A.Y.¹^,2, Beloborodov K.I.¹^,2, Berdyugin A.V.¹^,2, Berkaev D.E.¹, Bogdanchikov A.G.¹, Botov A.A.¹, Denisov V.S.¹, Dimova T.V.¹^,2, Druzhinin V.P.¹^,2, Zhabin V.N.¹, Zhulanov V.V.¹^,2, Zemlyansky I.M.¹^,2, Kardapoltsev L.V.¹^,2, Kattsin A.A.¹, Kirpotin A.N.¹, Kovrizhin D.P.¹, Koop I.A.¹^,2, Korol A.A.¹^,2, Kupich A.S.¹^,2, Kryukov A.P.¹, Lysenko A.P.¹, Melnikova N.A.¹, Muchnoy N.Y.¹^,2, Obrazovsky A.E.¹, Pakhtusova E.V.¹, Perevedentsev E.A.¹^,2, Pugachev K.V.¹^,2, Rogovsky Y.A.¹^,2, Serednyakov S.I.¹^,2, Silagadze Z.K.¹^,2, Surin I.K.¹, Timoshenko M.V.¹, Usov Y.V.¹, Fomin L.B.¹, Kharlamov A.G.¹^,2, Shatunov Y.M.¹, Shtol D.A.¹, Eminov E.A.¹
Affiliations:
1. Budker Institute of Nuclear Physics SB RAS
2. Novosibrisk State University
Issue: Vol 88, No 1 (2025)
Pages: 54–63
Section: ЭЛЕМЕНТАРНЫЕ ЧАСТИЦЫ И ПОЛЯ. Эксперимент
URL: https://journals.rcsi.science/0044-0027/article/view/303727
DOI: https://doi.org/10.31857/S0044002725010073
EDN: https://elibrary.ru/GSGCGT
ID: 303727

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Abstract
About the authors
References
Supplementary files
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Abstract

The cross section for the process e+e− → π+π−2π0η is measured in the center-of-mass energy region 1.55–2 GeV for integrated luminosity 146 pb−1 collected by the SND detector at the VEPP-2000 e+e− collider. The obtained cross section is fitted with theVMDmodel with the ρ(1700) and ρ(2150) resonances.

Keywords

детектор СНД, ee-коллайдер, ВЭПП-2000, резонансы ρ(1700) и ρ(2150)

About the authors

M. N. Achasov

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

A. Yu. Barnyakov

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

K. I. Beloborodov

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

A. V. Berdyugin

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

D. E. Berkaev

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

A. G. Bogdanchikov

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

A. A. Botov

Budker Institute of Nuclear Physics SB RAS

Email: A.A.Botov@inp.nsk.su
Novosibirsk, Russia

V. S. Denisov

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

T. V. Dimova

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

V. P. Druzhinin

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

V. N. Zhabin

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

V. V. Zhulanov

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

I. M. Zemlyansky

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

L. V. Kardapoltsev

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

A. A. Kattsin

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

A. N. Kirpotin

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

D. P. Kovrizhin

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

I. A. Koop

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

A. A. Korol

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

A. S. Kupich

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

A. P. Kryukov

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

A. P. Lysenko

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

N. A. Melnikova

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

N. Yu. Muchnoy

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

A. E. Obrazovsky

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

E. V. Pakhtusova

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

E. A. Perevedentsev

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

K. V. Pugachev

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

Yu. A. Rogovsky

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

S. I. Serednyakov

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

Z. K. Silagadze

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

I. K. Surin

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

M. V. Timoshenko

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

Yu. V. Usov

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

L. B. Fomin

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

A. G. Kharlamov

Budker Institute of Nuclear Physics SB RAS; Novosibrisk State University

Novosibirsk, Russia; Novosibirsk, Russia

Yu. M. Shatunov

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

D. A. Shtol

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

E. A. Eminov

Budker Institute of Nuclear Physics SB RAS

Novosibirsk, Russia

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