Measuring the Neutron Timelike Electromagnetic Form Factor with the SND Detector

M. N. Achasov; Ачасов М. Н.; A. Yu. Barnyakov; Барняков А. Ю.; E. V. Bedarev; Бедарев Е. В.; K. I. Beloborodov; Белобородов K. 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.; T. V. Dimova; Димова Т. В.; V. P. Druzhinin; Дружинин В. П.; V. N. Zhabin; Жабин В. Н.; Yu. M. Zharinov; Жаринов Ю. М.; L. V. Kardapoltsev; Кардапольцев Л. В.; A. S. Kasaev; Касаев А. С.; 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. Muchnoi; Мучной Н. Ю.; A. E. Obrazovsky; Oбразовский А. Е.; E. V. Pakhtusova; Пахтусова Е. В.; K. V. Pugachev; Пугачев К. В.; S. A. Rastigeev; Растигеев С. А.; Yu. A. Rogovsky; Роговский Ю. А.; S. I. Serednyakov; Середняков С. И.; Z. K. Silagadze; Силагадзе З. К.; I. K. Surin; Сурин И. К.; Yu. V. Usov; Усов Ю. В.; A. G. Kharlamov; Харламов А. Г.; Yu. M. Shatunov; Шатунов Ю. М.; D. A.  Shtol; Штоль Д. А.

doi:10.31857/S0044002723060077

Measuring the Neutron Timelike Electromagnetic Form Factor with the SND Detector

Authors: Achasov M.N.¹^,2, Barnyakov A.Y.¹^,2, Bedarev E.V.¹^,2, Beloborodov K.I.¹^,2, Berdyugin A.V.¹^,2, Berkaev D.E.¹, Bogdanchikov A.G.¹, Botov A.A.¹, Dimova T.V.¹^,2, Druzhinin V.P.¹^,2, Zhabin V.N.¹^,2, Zharinov Y.M.¹, Kardapoltsev L.V.¹^,2, Kasaev A.S.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^,2, Muchnoi N.Y.¹^,2, Obrazovsky A.E.¹, Pakhtusova E.V.¹, Pugachev K.V.¹^,2, Rastigeev S.A.¹, Rogovsky Y.A.¹^,2, Serednyakov S.I.¹^,2, Silagadze Z.K.¹^,2, Surin I.K.¹, Usov Y.V.¹, Kharlamov A.G.¹^,2, Shatunov Y.M.¹^,2, Shtol D.A.¹
Affiliations:
1. Институт ядерной физики им. Г.И. Будкера СО РАН
2. Новосибирский государственный университет
Issue: Vol 86, No 6 (2023)
Pages: 672-680
Section: ЭЛЕМЕНТАРНЫЕ ЧАСТИЦЫ И ПОЛЯ. Эксперимент
URL: https://bakhtiniada.ru/0044-0027/article/view/232840
DOI: https://doi.org/10.31857/S0044002723060077
EDN: https://elibrary.ru/OVHXNC
ID: 232840

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Abstract

Results are presented from measuring the e+e− → n¯n cross section and effective neutron timelike form factor. Data are collected in 2020–2021 at the VEPP-2000 e+e− collider in the 1891 to 2007 MeV center-of-mass range of energies. The general purpose nonmagnetic SND detector is used to detect neutron–antineutron events. The time-of-flight approach is used to select n¯n events. The measured
cross section is 0.4–0.6 nbn. The neutron form factor in the investigated range of energies varies from 0.3 to 0.2.

References

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Measuring the Neutron Timelike Electromagnetic Form Factor with the SND Detector

Full Text

Abstract

About the authors

References

Supplementary files