Increasing the Sensitivity of the Baikal-GVD Neutrino Telescope Using External Strings of Optical Modules
Avrorin A.V. Avrorin A.D. Aynutdinov V.M. Allakhverdyan V.A. Bardaćhová Z. Belolaptikov I.A. Borina I.V. Budnev N.M. Gafarov A.R. Golubkov K.V. Gorshkov N.S. Gress T.I. Dvornicky R. Dzhilkibaev Z.-A.M. Dik V.Y. Domogatsky G.V. Doroshenko A.A. Dyachok A.N. Elzhov T.V. Zaborov D.N. Kebkal V.K. Kebkal K.G. Kozhin V.A. Kolbin M.M. Konischev K.V. Korobchenko A.V. Koshechkin A.P. Kruglov M.V. Kryukov M.K. Kulepov V.F. Malyshkin Y.M. Milenin M.B. Mirgazov R.R. Nazari V. Naumov D.V. Petukhov D.P. Pliskovsky E.N. Rozanov M.I. Rushay V.D. Ryabov E.V. Safronov G.B. Seitova D. Sirenko A.E. Skurikhin A.V. Solovje A.G. Sorokovikov M.N. Stromakov A.P. Suvorov O.V. Tabolenko V.A. Taraschansky B.A. Fajt L. Khatun A. Khramov E.V. Shaybonov B.A. Shelepov M.D. Simkovic F. Šteckl I. Eckerová E. Yablokova Y.V.
December 2023Pleiades Publishing
Instruments and Experimental Techniques
2023#66Issue 61009 - 1017 pp.
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.
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Institute for Nuclear Research, Russian Academy of Sciences, Moscow, 117312, Russian Federation
Joint Institute for Nuclear Research, Moscow oblast, Dubna, Russian Federation
Comenius University, Bratislava, Slovakia
Irkutsk State University, Irkutsk, Russian Federation
EvoLogics GmbH, Berlin, Germany
Skobeltsyn Research Institute of Nuclear Physics, Moscow State University, Moscow, Russian Federation
Nizhny Novgorod State Technical University, Nizhny Novgorod, Russian Federation
St. Petersburg State Marine Technical University, St. Petersburg, Russian Federation
Czech Technical University in Prague, Prague, Czech Republic
Institute of Nuclear Physics ME, Almaty, Kazakhstan
Institute for Nuclear Research
Joint Institute for Nuclear Research
Comenius University
Irkutsk State University
EvoLogics GmbH
Skobeltsyn Research Institute of Nuclear Physics
Nizhny Novgorod State Technical University
St. Petersburg State Marine Technical University
Czech Technical University in Prague
Institute of Nuclear Physics ME
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