Создание второй нейтринной лаборатории на реакторе СМ-3 с целью увеличения точности эксперимента "Нейтрино-4"

Журнал технической физики Pub Date : 2023-01-01 DOI:10.21883/jtf.2023.01.54079.241-22

Анатолий Павлович Серебров, В.Г. Ивочкин, Р. М. Самойлов, А. К. Фомин, В. Г. Зиновьев, С. С. Волков, В.Л. Головцов, Н.В. Грузинский, П.В. Неустроев, Валерий Валерьевич Федоров, И.В. Паршин, А. А. Герасимов, М.Е. Зайцев, М.Е. Чайковский, А. М. Гагарский, А. Л. Петелин, А. Л. Ижутов, М.О. Громов, С.А. Сазонтов, А.А. Тузов, В. И. Рыкалин, Дмитрий Анатольевич Макаренков, А.М. Немерюк, Т. Е. Кузьмина

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Abstract

In the experiment "Neutrino-4" on the search for a sterile neutrino, the effect of oscillations was found at a confidence level of 3 standard deviations. In order to significantly increase the accuracy of the experiment, a second neutrino laboratory is created at the SM-3 reactor (Dimitrovgrad, Russia) and a new neutrino detector is developed. The scintillation-type detector consists of 4 modules having a multi-sectional structure with a horizontal arrangement of 100 sections with PMTs located on both sides of the section. The possibility of increasing the accuracy of the experiment by a factor of 2.7 is shown, which will make it possible to achieve a confidence level of more than 5 standard deviations and answer the question of the existence of a sterile neutrino.

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在cm -3反应堆上建立第二个中微子实验室，以增加中微子-4实验的准确性。

在寻找无菌中微子的实验“中微子-4”中，振荡的影响在3个标准差的置信水平上被发现。为了大大提高实验的准确性，在SM-3反应堆(俄罗斯季米特洛夫格勒)建立了第二个中微子实验室，并开发了一种新的中微子探测器。闪烁型探测器由4个模块组成，具有多截面结构，水平排列100个截面，pmt位于截面两侧。将实验精度提高2.7倍的可能性表明，这将有可能达到超过5个标准差的置信水平，并回答无菌中微子存在的问题。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Журнал технической физики

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