Increasing the Sensitivity of the Baikal-GVD Neutrino Telescope Using External Strings of Optical Modules

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Abstract

Deployment of the deep-sea neutrino telescope Baikal-GVD continues in Lake Baikal. By April 2022, ten telescope clusters, which include 2880 optical modules, were put into operation. One of the urgent tasks of the Baikal project is to study the possibility of increasing the detection efficiency of the detector based on the experience of its operation and the results obtained with other neutrino telescopes in recent years. In this paper, the authors consider a variant of optimizing the telescope configuration by installing an additional string of optical modules between the detector clusters (external string). An experimental version of the external garland was installed in Lake Baikal in April 2022. The paper presents the results from calculations of the efficiency of registration of neutrino events for a new setup configuration, the technical implementation of the system for recording and collecting data from the external garland, and the first results of its full-scale tests in Lake Baikal.

About the authors

Y. V. Yablokova

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

A. E. Sirenko

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

D. Seitova

Joint Institute for Nuclear Research; Institute of Nuclear Physics Physics of the Ministry of Energy of the Republic of Kazakhstan

Email: viktoriya@jinr.ru
Russia, 141980, Dubna; Kazakhstan, 050032, Almaty

G. B. Safronov

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

E. V. Ryabov

Irkutsk State University

Email: grigorybs@gmail.com
Russia, 664003, Irkutsk

V. D. Rushay

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

M. I. Rozanov

St. Petersburg State Marine Technical University

Email: grigorybs@gmail.com
Russia, 190008, St. Petersburg

E. N. Pliskovsky

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

D. P. Petukhov

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

D. V. Naumov

Joint Institute for Nuclear Research

Email: viktoriya@jinr.ru
Russia, 141980, Dubna

V. Nazari

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

R. R. Mirgazov

Irkutsk State University

Email: grigorybs@gmail.com
Russia, 664003, Irkutsk

M. B. Milenin

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

A. V. Skurikhin

Skobeltsyn Research Institute of Nuclear Physics, Moscow State University

Email: grigorybs@gmail.com
Russia, 119991, Moscow

A. G. Solovjev

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

M. N. Sorokovikov

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

E. Eckerová

Comenius University

Email: grigorybs@gmail.com
Slovakia, 81499, Bratislava

I. Štekl

Czech Technical University, Institute of Experimental and Applied Physics

Email: grigorybs@gmail.com
Czech Republic, CZ-11000, Prague

F. Šimkovic

Joint Institute for Nuclear Research; Comenius University; Czech Technical University, Institute of Experimental and Applied Physics

Email: grigorybs@gmail.com
Dubna, Moscow oblast, Russia; Slovakia, 81499, Bratislava; Czech Republic, CZ-11000, Prague

M. D. Shelepov

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

B. A. Shaybonov

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

E. V. Khramov

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

A. Khatun

Comenius University

Email: grigorybs@gmail.com
Slovakia, 81499, Bratislava

L. Fajt

Czech Technical University, Institute of Experimental and Applied Physics

Email: grigorybs@gmail.com
Czech Republic, CZ-11000, Prague

B. A. Tarashansky

Irkutsk State University

Email: grigorybs@gmail.com
Russia, 664003, Irkutsk

V. A. Tabolenko

Irkutsk State University

Email: viktoriya@jinr.ru
Russia, 664003, Irkutsk

O. V. Suvorova

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

A. P. Stromakov

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

Yu. M. Malyshkin

Joint Institute for Nuclear Research

Email: nikitushakoffa@gmail.com
Russia, 141980, Dubna

V. F. Kulepov

Nizhny Novgorod State Technical University

Email: grigorybs@gmail.com
Russia, 603950, Nizhny Novgorod

M. K. Kryukov

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

R. Dvornický

Joint Institute for Nuclear Research; Comenius University

Email: grigorybs@gmail.com
Dubna, Moscow oblast, Russia; Slovakia, 81499, Bratislava

T. I. Gress

Irkutsk State University

Email: grigorybs@gmail.com
Russia, 664003, Irkutsk

N. S. Gorshkov

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

K. V. Golubkov

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

A. R. Gafarov

Irkutsk State University

Email: viktoriya@jinr.ru
Russia, 664003, Irkutsk

N. M. Budnev

Irkutsk State University

Email: popov7376@mail.ru
Russia, 664003, Irkutsk

I. V. Borina

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

I. A. Belolaptikov

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

Z. Bardaćhová

Comenius University

Email: aynutdin@yandex.ru
Slovakia, Bratislava

V. A. Allakhverdyan

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

V. M. Aynutdinov

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

A. D. Avrorin

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

Zh.-A. M. Dzhilkibaev

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

V. Ya. Dik

Joint Institute for Nuclear Research; Institute of Nuclear Physics of the Ministry of Energy of the Republic of Kazakhstan

Email: grigorybs@gmail.com
Russia, 141980, Dubna; Kazakhstan, 050032, Almaty

G. V. Domogatsky

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

M. V. Kruglov

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

A. P. Koshechkin

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

A. V. Korobchenko

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

K. V. Konischev

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

M. M. Kolbin

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

V. A. Kozhin

Skobeltsyn Research Institute of Nuclear Physics, Moscow State University

Email: grigorybs@gmail.com
Russia, 119991, Moscow

K. G. Kebkal

EvoLogics GmbH

Email: grigorybs@gmail.com
Germany, 13355, Berlin

V. K. Kebkal

EvoLogics GmbH

Email: grigorybs@gmail.com
Germany, 13355, Berlin

D. N. Zaborov

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

T. V. Elzhov

Joint Institute for Nuclear Research

Email: grigorybs@gmail.com
Russia, 141980, Dubna

A. N. Dyachok

Institute of Applied Physics, Irkutsk State University

Email: tfl10@mail.ru
Russia, 664003, Irkutsk

A. A. Doroshenko

Institute for Nuclear Research of the Russian Academy of Sciences

Email: grigorybs@gmail.com
Russia, 117312, Moscow

A. V. Avrorin

Institute for Nuclear Research of the Russian Academy of Sciences

Author for correspondence.
Email: grigorybs@gmail.com
Russia, 117312, Moscow

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Copyright (c) 2023 А.В. Аврорин, А.Д. Аврорин, В.М. Айнутдинов, В.А. Аллахвердян, З. Бардачова, И.А. Белолаптиков, И.В. Борина, Н.М. Буднев, А.Р. Гафаров, К.В. Голубков, Н.С. Горшков, Т.И. Гресь, Р. Дворницки, Ж.-А.М. Джилкибаев, В.Я. Дик, Г.В. Домогацкий, А.А. Дорошенко, А.Н. Дячок, Т.В. Елжов, Д.Н. Заборов, В.К. Кебкал, К.Г. Кебкал, В.А. Кожин, М.М. Колбин, К.В. Конищев, А.В. Коробченко, А.П. Кошечкин, М.В. Круглов, М.К. Крюков, В.Ф. Кулепов, Ю.М. Малышкин, М.Б. Миленин, Р.Р. Миргазов, В. Назари, Д.В. Наумов, Д.П. Петухов, Е.Н. Плисковский, М.И. Розанов, В.Д. Рушай, Е.В. Рябов, Г.Б. Сафронов, Д. Сеитова, А.Э. Сиренко, А.В. Скурихин, А.Г. Соловьев, М.Н. Сороковиков, А.П. Стромаков, О.В. Суворова, В.А. Таболенко, Б.А. Таращанский, Л. Файт, А. Хатун, Е.В. Храмов, Б.А. Шайбонов, М.Д. Шелепов, Ф. Шимковиц, И. Штекл, Э. Эцкерова, Ю.В. Яблокова