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2. Observations of track-like neutrino events with Baikal-GVD

Author

Dmitry Zaborov, V.A. Allakhverdyan, A.D. Avrorin, A.V. Avrorin, V.M. Aynutdinov, R. Bannasch, Zuzana Bardačová, I.A. Belolaptikov, I.V. Borina, V.B. Brudanin, N.M. Budnev, V.Y. Dik, G.V. Domogatsky, A.A. Doroshenko, Rastislav Dvornicky, A.N. Dyachok, Zh.-A.M. Dzhilkibaev, Eliška Eckerová, T.V. Elzhov, L. Fajt, Stanislav Vasilevich Fialkovsky, A.R. Gafarov, K.V. Golubkov, N.S. Gorshkov, T.I. Gress, M.S. Katulin, K.G. Kebkal, O.G. Kebkal, E.V. Khramov, M.M. Kolbin, K.V. Konischev, K.A. Kopański, A.V. Korobchenko, A.P. Koshechkin, V.A. Kozhin, M.V. Kruglov, M.K. Kryukov, V.F. Kulepov, Pa. Malecki, Y.M. Malyshkin, M.B. Milenin, R.R. Mirgazov, D.V. Naumov, V. Nazari, W. Noga, D.P. Petukhov, E.N. Pliskovsky, M.I. Rozanov, V.D. Rushay, E.V. Ryabov, G.B. Safronov, B.A. Shaybonov, M.D. Shelepov, Fedor Šimkovic, A.E. Sirenko, A.V. Skurikhin, A.G. Solovjev, M.N. Sorokovikov, Ivan Štekl, A.P. Stromakov, E.O. Sushenok, O.V. Suvorova, V.A. Tabolenko, B.A. Tarashansky, Y.V. Yablokova, and S.A. Yakovlev

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Muon, Physics::Instrumentation and Detectors, Track (disk drive), Astrophysics::High Energy Astrophysical Phenomena, Detector, Monte Carlo method, FOS: Physical sciences, Flux, Reconstruction algorithm, Nuclear physics, Neutrino detector, High Energy Physics::Experiment, Neutrino, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

The Baikal Gigaton Volume Detector (Baikal-GVD) is a km$^3$-scale neutrino detector currently under construction in Lake Baikal, Russia. The detector currently consists of 2304 optical modules arranged on 64 vertical strings. Further extension of the array is planned for March 2022. The data from the partially complete array have been analyzed using a $\chi^2$-based track reconstruction algorithm. After suppression of the downward-going atmospheric muon background, a flux of upward-going neutrino events is observed, dominated by the atmospheric neutrinos. The observed flux is in good agreement with Monte Carlo predictions., Comment: 8 pages, 5 figures, to be published in Proceedings of the 37th International Cosmic Ray Conference (ICRC-2021), 12-23 July 2021

Published
2021

3. Experimental string with fiber optic data acquisition for Baikal-GVD

Author

Vladimir Aynutdinov, A. Allakhverdyan, A.D. Avrorin, A.V. Avrorin, R. Bannasch, Z. Bardаčová, I.A. Belolaptikov, I.V. Borina, V.B. Brudanin, N.M. Budnev, V.Y. Dik, G.V. Domogatsky, A.A. Doroshenko, Rastislav Dvornicky, A.N. Dyachok, Zh.-A.M. Dzhilkibaev, Eliška Eckerová, T.V. Elzhov, L. Fajt, Stanislav Vasilevich Fialkovsky, A.R. Gafarov, K.V. Golubkov, N.S. Gorshkov, T.I. Gress, M.S. Katulin, K.G. Kebkal, O.G. Kebkal, E.V. Khramov, M.M. Kolbin, K.V. Konischev, K.A. Kopanski, A.V. Korobchenko, A.P. Koshechkin, V.A. Kozhin, M.V. Kruglov, M.K. Kryukov, V.F. Kulepov, Pa. Malecki, Y.M. Malyshkin, M.B. Milenin, R.R. Mirgazov, D.V. Naumov, V. Nazari, W. Noga, D.P. Petukhov, E.N. Pliskovsky, M.I. Rozanov, V.D. Rushay, E.V. Ryabov, G.B. Safronov, B.A. Shaybonov, M.D. Shelepov, Fedor Šimkovic, A.E. Sirenko, A.V. Skurikhin, A.G. Solovjev, M.N. Sorokovikov, Ivan Štekl, A.P. Stromakov, E.O. Sushenok, O.V. Suvorova, V.A. Tabolenko, B.A. Tarashansky, Y.V. Yablokova, S.A. Yakovlev, and D.N. Zaborov

Published
2021
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4. Time synchronization of Baikal-GVD clusters

Author

Vladimir Aynutdinov, V.A. Allakhverdyan, A.D. Avrorin, A.V. Avrorin, R. Bannasch, Z. Bardаčová, I.A. Belolaptikov, I.V. Borina, V.B. Brudanin, N.M. Budnev, V.Y. Dik, G.V. Domogatsky, A.A. Doroshenko, Rastislav Dvornicky, A.N. Dyachok, Zh.-A.M. Dzhilkibaev, Eliška Eckerová, T.V. Elzhov, L. Fajt, Stanislav Vasilevich Fialkovsky, A.R. Gafarov, K.V. Golubkov, N.S. Gorshkov, T.I. Gress, M.S. Katulin, K.G. Kebkal, O.G. Kebkal, E.V. Khramov, M.M. Kolbin, K.V. Konischev, K.A. Kopanski, A.V. Korobchenko, A.P. Koshechkin, V.A. Kozhin, M.V. Kruglov, M.K. Kryukov, V.F. Kulepov, Pa. Malecki, Y.M. Malyshkin, M.B. Milenin, R.R. Mirgazov, D.V. Naumov, V. Nazari, W. Noga, D.P. Petukhov, E.N. Pliskovsky, M.I. Rozanov, V.D. Rushay, E.V. Ryabov, G.B. Safronov, B.A. Shaybonov, M.D. Shelepov, Fedor Šimkovic, A.E. Sirenko, A.V. Skurikhin, A.G. Solovjev, M.N. Sorokovikov, Ivan Štekl, A.P. Stromakov, E.O. Sushenok, O.V. Suvorova, V.A. Tabolenko, B.A. Tarashansky, Y.V. Yablokova, S.A. Yakovlev, and D.N. Zaborov

Published
2021
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5. Performance of the muon track reconstruction with the Baikal-GVD neutrino telescope

Author

Grigory Safronov, V.A. Allakhverdyan, A.D. Avrorin, A.V. Avrorin, V.M. Aynutdinov, R. Bannasch, Zuzana Bardačová, I.A. Belolaptikov, V.B. Brudanin, N.M. Budnev, V.Y. Dik, G.V. Domogatsky, A.A. Doroshenko, Rastislav Dvornicky, A.N. Dyachok, Zh.-A.M. Dzhilkibaev, Eliška Eckerová, T.V. Elzhov, L. Fajt, Stanislav Vasilevich Fialkovsky, A.R. Gafarov, K.V. Golubkov, N.S. Gorshkov, T.I. Gress, M.S. Katulin, K.G. Kebkal, O.G. Kebkal, E.V. Khramov, M.M. Kolbin, K.V. Konischev, K.A. Kopański, A.V. Korobchenko, A.P. Koshechkin, V.A. Kozhin, M.V. Kruglov, M.K. Kryukov, V.F. Kulepov, Pa. Malecki, Y.M. Malyshkin, M.B. Milenin, R.R. Mirgazov, D.V. Naumov, V. Nazari, W. Noga, D.P. Petukhov, E.N. Pliskovsky, M.I. Rozanov, V.D. Rushay, E.V. Ryabov, B.A. Shaybonov, M.D. Shelepov, Fedor Šimkovic, A.E. Sirenko, A.V. Skurikhin, A.G. Solovjev, M.N. Sorokovikov, Ivan Štekl, A.P. Stromakov, E.O. Sushenok, O.V. Suvorova, V.A. Tabolenko, B.A. Tarashansky, Y.V. Yablokova, S.A. Yakovlev, and D.N. Zaborov

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Particle physics, Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Track (disk drive), Monte Carlo method, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Classifier (linguistics), High Energy Physics::Experiment, Gradient boosting, Neutrino, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Selection (genetic algorithm)
Abstract

Baikal-GVD is a km$^3$-scale neutrino telescope being constructed in Lake Baikal. Muon and partially tau (anti)neutrino interactions near the detector through the W$^{\pm}$-boson exchange are accompanied by muon tracks. Reconstructed direction of the track is arguably the most precise probe of the neutrino direction attainable in Cerenkov neutrino telescopes. Muon reconstruction techniques adopted by Baikal-GVD are discussed in the present report. Performance of the muon reconstruction is studied using realistic Monte Carlo simulation of the detector. The algorithms are applied to real data from Baikal-GVD and the results are compared with simulations. The performance of the neutrino selection based on a boosted decision tree classifier is discussed., 8 pages, 5 figures. Poster presented at 37th International Cosmic Ray Conference (ICRC 2021), July 12th - 23rd, 2021, Online - Berlin, Germany. PoS(ICRC2021)1080

Published
2021
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6. The Baikal-GVD neutrino telescope: search for high-energy cascades

Author

Zhan-Arys Magysovich Dzhilkibaev, V.A. Allakhverdyan, А.D. Avrorin, A.V. Avrorin, V.M. Aynutdinov, R. Bannasch, Z. Bardаčová, I.A. Belolaptikov, I.V. Borina, V.B. Brudanin, N.M. Budnev, V.Y. Dik, G.V. Domogatsky, A.A. Doroshenko, Rastislav Dvornicky, A.N. Dyachok, Zh.-A.M. Dzhilkibaev, Eliška Eckerová, T.V. Elzhov, L. Fajt, Stanislav Vasilevich Fialkovsky, A.R. Gafarov, K.V. Golubkov, N.S. Gorshkov, T.I. Gress, M.S. Katulin, K.G. Kebkal, O.G. Kebkal, E.V. Khramov, M.M. Kolbin, K.V. Konischev, K.A. Kopański, A.V. Korobchenko, A.P. Koshechkin, V.A. Kozhin, M.V. Kruglov, M.K. Kryukov, V.F. Kulepov, Pa. Malecki, Y.M. Malyshkin, M.B. Milenin, R.R. Mirgazov, D.V. Naumov, V. Nazari, W. Noga, D.P. Petukhov, E.N. Pliskovsky, M.I. Rozanov, V.D. Rushay, E.V. Ryabov, G.B. Safronov, B.A. Shaybonov, M.D. Shelepov, Fedor Šimkovic, A.E. Sirenko, A.V. Skurikhin, A.G. Solovjev, M.N. Sorokovikov, Ivan Štekl, A.P. Stromakov, E.O. Sushenok, O.V. Suvorova, V.A. Tabolenko, B.A. Tarashansky, Y.V. Yablokova, S.А. Yakovlev, D.N. Zaborov, Yu.A. Kovalev, Yu.Yu. Kovalev, A.V. Plavin, S.V. Troitsky, A.K. Erkenov, T.V. Mufakharov, Yu.V. Sotnikova, T. Hovatta, S. Kiehlmann, and A.C.S. Readhead

Published
2021
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7. Follow up of the IceCube alerts with the Baikal-GVD telescope

Author

V.Y. Dik, V.A. Allakhverdyan, A.D. Avrorin, A.V. Avrorin, V.M. Aynutdinov, R. Bannasch, Z. Bardačová, I.A. Belolaptikov, I.V. Borina, V.B. Brudanin, N.M. Budnev, G.V. Domogatsky, A.A. Doroshenko, R. Dvornický, A.N. Dyachok, Zh.-A.M. Dzhilkibaev, E. Eckerová, T.V. Elzhov, L. Fajt, S.V. Fialkovski, A.R. Gafarov, K.V. Golubkov, N.S. Gorshkov, T.I. Gress, M.S. Katulin, K.G. Kebkal, O.G. Kebkal, E.V. Khramov, M.M. Kolbin, K.V. Konischev, K.A. Kopański, A.V. Korobchenko, A.P. Koshechkin, V.A. Kozhin, M.V. Kruglov, M.K. Kryukov, V.F. Kulepov, Pa. Malecki, Y.M. Malyshkin, M.B. Milenin, R.R. Mirgazov, D.V. Naumov, V. Nazari, W. Noga, D.P. Petukhov, E.N. Pliskovsky, M.I. Rozanov, V.D. Rushay, E.V. Ryabov, G.B. Safronov, B.A. Shaybonov, M.D. Shelepov, F. Šimkovic, A.E. Sirenko, A.V. Skurikhin, A.G. Solovjev, M.N. Sorokovikov, I. Štekl, A.P. Stromakov, E.O. Sushenok, O.V. Suvorova, V.A. Tabolenko, B.A. Tarashansky, Y.V. Yablokova, S.A. Yakovlev, and D.N. Zaborov

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, High Energy Physics::Experiment, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation, Mathematical Physics
Abstract

The high-energy muon neutrino events of the IceCube telescope, that are triggered as neutrino alerts in one of two probability ranks of astrophysical origin, "gold" and "bronze", have been followed up by the Baikal-GVD in a fast quasi-online mode since September 2020. Search for correlations between alerts and GVD events reconstructed in two modes, muon-track and cascades (electromagnetic or hadronic showers), for the time windows $ \pm $ 1 h and $ \pm $ 12 h does not indicate statistically significant excess of the measured events over the expected number of background events. Upper limits on the neutrino fluence will be presented for each alert., Comment: 5 pages, 5 figures, Proceedings for the VLVnT 2021 conference, submitted to JINST

Published
2021
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8. Personal compatibility of physician and patient

Author

E.V. Sidorina, E.V. Mamonova, and O.V. Suvorova

Subjects
Interpersonal compatibility, Psychological literature, media_common.quotation_subject, 05 social sciences, Treatment process, 050301 education, Social Sciences, 050109 social psychology, Ideal (ethics), Joint activity, Compatibility (mechanics), Similarity (psychology), 0501 psychology and cognitive sciences, Psychology, Function (engineering), 0503 education, Social psychology, media_common
Abstract

The article discusses and details the interpersonal compatibility of the physician and the patient in the course of their interaction, which is the basis of medicine, the platform on which the treatment process is based. An analysis of the concept of compatibility has been carried out, which is presented in domestic and foreign psychological literature. The analysis suggests that personal compatibility is a function of satisfaction with collaborative action, since it is initially necessary to interact, followed by compatibility, the result of which is rebuilt in satisfaction. By analyzing the statements of domestic and foreign psychologists, compatibility can be imagined in the form of an ideal combination of qualities and senses, resulting in the maximum result in carrying out various actions. Thus, personal compatibility is important in all types of social relationships, but it plays a special role in the long-term relationship between the doctor and the patient. The study concluded that the compatibility of the physician and the patient, as well as the building of an informed relationship between them, is significantly influenced by the presence of similar personal characteristics. The similarity of the personal characteristics of the doctor and the patient allows achieving the best result in their joint activity.

Published
2021

9. Baikal-GVD: status and first results

Author

Grigory Safronov, A.D. Avrorin, A.V. Avrorin, V.M. Aynutdinov, Z. Bardáčová, R. Bannasch, I.A. Belolaptikov, V.B. Brudanin, N.M. Budnev, G.V. Domogatsky, E. Eckerová, T.V. Elzhov, L. Fajt, S.V. Fialkovski, A.R. Gafarov, K.V. Golubkov, N.S. Gorshkov, T.I. Gress, R.A. Ivanov, M.S. Katulin, K.G. Kebkal, O.G. Kebkal, E.V. Khramov, M.M. Kolbin, K.V. Konischev, K.A. Kopański, A.V. Korobchenko, A.P. Koshechkin, V.A. Kozhin, M.K. Kryukov, M.V. Kruglov, V.F. Kulepov, M.B. Milenin, R.R. Mirgazov, D.V. Naumov, V. Nazari, W. Noga, D.P. Petukhov, E.N. Pliskovsky, M.I. Rozanov, V.D. Rushay, E.V. Ryabov, G.B. Safronov, B.A. Shaybonov, M.D. Shelepov, F. Šimkovic, A.V. Skurikhin, A.G. Solovjev, M.N. Sorokovikov, I. Štekl, E.O. Sushenok, O.V. Suvorova, V.A. Tabolenko, B.A. Tarashansky, Y.V. Yablokova, S. Yakovlev, and D.N. Zaborov𝑎

Published
2020
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10. Technique for suppression of background cascades produced by atmospheric muon bundles in the Baikal-GVD

Author

V.A. Allakhverdyan, A.D. Avrorin, A.V. Avrorin, V.M. Aynutdinov, R. Bannasch, Z. Bardačová, I.A. Belolaptikov, I.V. Borina, V.B. Brudanin, N.M. Budnev, V.Y. Dik, G.V. Domogatsky, A.A. Doroshenko, R. Dvornický, A.N. Dyachok, Zh.-A.M. Dzhilkibaev, E. Eckerová, T.V. Elzhov, L. Fajt, S.V. Fialkovski, A.R. Gafarov, K.V. Golubkov, N.S. Gorshkov, T.I. Gress, M.S. Katulin, K.G. Kebkal, O.G. Kebkal, E.V. Khramov, M.M. Kolbin, K.V. Konischev, K.A. Kopański, A.V. Korobchenko, A.P. Koshechkin, V.A. Kozhin, M.V. Kruglov, M.K. Kryukov, V.F. Kulepov, Pa. Malecki, Y.M. Malyshkin, M.B. Milenin, R.R. Mirgazov, D.V. Naumov, V. Nazari, W. Noga, D.P. Petukhov, E.N. Pliskovsky, M.I. Rozanov, V.D. Rushay, E.V. Ryabov, G.B. Safronov, B.A. Shaybonov, M.D. Shelepov, F. Šimkovic, A.E. Sirenko, A.V. Skurikhin, A.G. Solovjev, M.N. Sorokovikov, I. Štekl, A.P. Stromakov, E.O. Sushenok, O.V. Suvorova, V.A. Tabolenko, B.A. Tarashansky, Y.V. Yablokova, S.A. Yakovlev, and D.N. Zaborov

Subjects
Physics::Instrumentation and Detectors, Instrumentation, Mathematical Physics
Abstract

Baikal-GVD (Gigaton Volume Detector) is a neutrino telescope located in pure water of Lake Baikal. At the current stage (season 2021), detector is composed of 2304 optical modules arranged in 8 clusters. In searching for neutrino cascade events, light patterns produced via discrete stochastic energy losses along muon tracks create the most abundant background. Methods to separate cascade-like events from tracks and neutrino cascades in a single cluster have been developed and optimized. One of the method tries to find the maximum number of track hits amongst cascade hits, which are present in the muon bundle event. Other ones rely on the distributions of charges and positions of hits on optical modules associated with cascade events. All suppression methods were optimized by the Monte Carlo simulation datasets.

Published
2022
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11. Method and portable bench for tests of the laser optical calibration system components for the Baikal-GVD underwater neutrino Cherenkov telescope

Author

V.A. Allakhverdyan, A.D. Avrorin, A.V. Avrorin, V.M. Aynutdinov, R. Bannasch, Z. Bardačová, I.A. Belolaptikov, I.V. Borina, V.B. Brudanin, N.M. Budnev, V.Y. Dik, G.V. Domogatsky, A.A. Doroshenko, R. Dvornický, A.N. Dyachok, Zh.-A.M. Dzhilkibaev, E. Eckerová, T.V. Elzhov, L. Fajt, S.V. Fialkovski, A.R. Gafarov, K.V. Golubkov, N.S. Gorshkov, T.I. Gress, M.S. Katulin, K.G. Kebkal, O.G. Kebkal, E.V. Khramov, M.M. Kolbin, K.V. Konischev, K.A. Kopański, A.V. Korobchenko, A.P. Koshechkin, V.A. Kozhin, M.V. Kruglov, M.K. Kryukov, V.F. Kulepov, Pa. Malecki, Y.M. Malyshkin, M.B. Milenin, R.R. Mirgazov, D.V. Naumov, V. Nazari, W. Noga, D.P. Petukhov, E.N. Pliskovsky, M.I. Rozanov, V.D. Rushay, E.V. Ryabov, G.B. Safronov, B.A. Shaybonov, M.D. Shelepov, F. Šimkovic, A.E. Sirenko, A.V. Skurikhin, A.G. Solovjev, M.N. Sorokovikov, I. Štekl, A.P. Stromakov, E.O. Sushenok, O.V. Suvorova, V.A. Tabolenko, B.A. Tarashansky, Y.V. Yablokova, S.A. Yakovlev, and D.N. Zaborov

Subjects
Physics - Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Instrumentation, Mathematical Physics
Abstract

The large-scale deep underwater Cherenkov neutrino telescopes like Baikal-GVD, ANTARES or KM3NeT, require calibration and testing methods of their optical modules. These methods usually include laser-based systems which allow to check the telescope responses to the light and for real-time monitoring of the optical parameters of water such as absorption and scattering lengths, which show seasonal changes in natural reservoirs of water. We will present a testing method of a laser calibration system and a set of dedicated tools developed for Baikal- GVD, which includes a specially designed and built, compact, portable, and reconfigurable scanning station. This station is adapted to perform fast quality tests of the underwater laser sets just before their deployment in the telescope structure, even on ice, without darkroom. The testing procedure includes the energy stability test of the laser device, 3D scan of the light emission from the diffuser and attenuation test of the optical elements of the laser calibration system. The test bench consists primarily of an automatic mechanical scanner with a movable Si detector, beam splitter with a reference Si detector and, optionally, Q-switched diode-pumped solid-state laser used for laboratory scans of the diffusers. The presented test bench enables a three-dimensional scan of the light emission from diffusers, which are designed to obtain the isotropic distribution of photons around the point of emission. The results of the measurement can be easily shown on a 3D plot immediately after the test and may be also implemented to a dedicated program simulating photons propagation in water, which allows to check the quality of the diffuser in the scale of the Baikal-GVD telescope geometry., Comment: Presented at the VLVnT - Very Large Volume Neutrino Telescope Workshop, Valencia, 18-21 May 2021

Published
2021
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12. Luminescence of Baikal water as a dynamic background of the Baikal-GVD Neutrino Telescope

Author

V.A. Allakhverdyan, A.D. Avrorin, A.V. Avrorin, V.M. Aynutdinov, R. Bannasch, Z. Bardačová, I.A. Belolaptikov, I.V. Borina, V.B. Brudanin, N.M. Budnev, V.Y. Dik, G.V. Domogatsky, A.A. Doroshenko, R. Dvornický, A.N. Dyachok, Zh.-A.M. Dzhilkibaev, E. Eckerová, T.V. Elzhov, L. Fajt, S.V. Fialkovski, A.R. Gafarov, K.V. Golubkov, N.S. Gorshkov, T.I. Gress, M.S. Katulin, K.G. Kebkal, O.G. Kebkal, E.V. Khramov, M.M. Kolbin, K.V. Konischev, K.A. Kopański, A.V. Korobchenko, A.P. Koshechkin, V.A. Kozhin, M.V. Kruglov, M.K. Kryukov, V.F. Kulepov, Pa. Malecki, Y.M. Malyshkin, M.B. Milenin, R.R. Mirgazov, D.V. Naumov, V. Nazari, W. Noga, D.P. Petukhov, E.N. Pliskovsky, M.I. Rozanov, V.D. Rushay, E.V. Ryabov, G.B. Safronov, B.A. Shaybonov, M.D. Shelepov, F. Šimkovic, A.E. Sirenko, A.V. Skurikhin, A.G. Solovjev, M.N. Sorokovikov, I. Štekl, A.P. Stromakov, E.O. Sushenok, O.V. Suvorova, V.A. Tabolenko, B.A. Tarashansky, Y.V. Yablokova, S.A. Yakovlev, and D.N. Zaborov

Subjects
Instrumentation, Mathematical Physics
Abstract

The Baikal-GVD is a neutrino telescope situated in the deepest freshwater lake in the world — Lake Baikal. The design of the Baikal-GVD trigger system allows also to study the ambient light of the lake. The analysis of the optical light activity of Baikal water, particularly, time and spatial variations of the luminescence activity for data collected in years 2018, 2019, and 2020 is presented. For the first time we observed highly luminescent layer moving upwards with maximal speed of 28 m/day in January 2021.

Published
2021
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14. The development of personality qualities of future officers of law enforcement agencies of the Russian Federation

Author

O.V. Suvorova, A.A. Dyachkov, and L.V. Shabanov

Subjects
Subjectivity, business.industry, media_common.quotation_subject, 05 social sciences, Law enforcement, Social Sciences, 050301 education, Public relations, Political science, 0502 economics and business, Personality, Russian federation, business, 0503 education, 050203 business & management, media_common
Abstract

The article is devoted to the problems of the development of the emotional and volitional sphere within the framework of the formation of the personal subjectivity of the future officers of Russia. The authors draw attention to the area of concern of appropriate assessment of the situation in conditions of constant changes and the dependence of the subjectivity on rational and emotional risk factors when making a decision by the commander. The main methods were studying. systematizing and making conclusions on literature sources concerning the stated problem of the study. preparing proposals. The article presents an analysis of the data of various researchers on the problem of the formation of personal subjectivity of a person.

Published
2021
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15. Baikal-GVD

Author

A.D. Avrorin, A.V. Avrorin, V.M. Aynutdinov, R. Bannash, I.A. Belolaptikov, V.B. Brudanin, N.M. Budnev, I.A. Danilchenko, S.V. Demidov, G.V. Domogatsky, A.A. Doroshenko, R. Dvornicky, A.N. Dyachok, Zh.-A.M. Dzhilkibaev, L. Fajt, S.V. Fialkovsky, A.R. Gafarov, O.N. Gaponenko, K.V. Golubkov, T.I. Gress, Z. Honz, K.G. Kebkal, O.G. Kebkal, K.V. Konischev, A.V. Korobchenko, A.P. Koshechkin, F.K. Koshel, A.V. Kozhin, V.F. Kulepov, D.A. Kuleshov, M.B. Milenin, R.A. Mirgazov, E.R. Osipova, A.I. Panfilov, L.V. Pan’kov, E.N. Pliskovsky, M.I. Rozanov, E.V. Rjabov, F.A. Shamakhov, B.A. Shaybonov, A.A. Sheifler, M.D. Shelepov, F. Simkovic, A.V. Skurihin, A.A. Smagina, I. Stekl, O.V. Suvorova, V.A. Tabolenko, B.A. Tarashansky, S.A. Yakovlev, A.V. Zagorodnikov, and V.L. Zurbanov

Subjects
Physics, QC1-999, 0103 physical sciences, 010306 general physics, 010303 astronomy & astrophysics, 01 natural sciences
Abstract

We present the status of the Gigaton Volume Detector in Lake Baikal (Baikal-GVD) designed for the detection of high energy neutrinos of astrophysical origin. The telescope consists of functionally independent clusters, sub-arrays of optical modules (OMs), which are connected to shore by individual electro-optical cables. During 2015 the GVD demonstration cluster, comprising 192 OMs, has been successfully operated in Lake Baikal. In 2016 this array was upgraded to baseline configuration of GVD cluster with 288 OMs arranged on eight vertical strings. Thus the instrumented water volume has been increased up to about 5.9 Mtons. The array was commissioned in early April 2016 and takes data since then. We describe the configuration and design of the 2016 array. Preliminary results obtained with data recorded in 2015 are also discussed.

Published
2017

16. SEARCH FOR HIGH-ENERGY NEUTRINOS FROM GW170817 WITH THE BAIKAL-GVD NEUTRINO TELESCOPE

Author

D. AVRORIN, A.V. AVRORIN, V.M. AYNUTDINOV, R. BANNASH, I.A. BELOLAPTIKOV, V.M. BRUDANIN, N.M. BUDNEV, A.A. DOROSHENKO, G.V. DOMOGATSKY, R. DVORNICKY, A.N. DYACHOK, ZH.-A. M. DZHILKIBAEV, L. FAJT, S.V. FIALKOVSKY, A.R. GAFAROV, K.V. GOLUBKOV, T.I. GRES, Z. HONZ, K.G. KEBKAL, O.G. KEBKAL, E.V. KHRAMOV, M.M. KOLBIN, K.V. KONISCHEV, A.P. KOROBCHENKO, A.P. KOSHECHKIN, V.A. KOZHIN, V.F. KULEPOV, D.A. KULESHOV, M.B. MILENIN, R.A. MIRGAZOV, E.R. OSIPOVA, A.I. PANfiLOV, L.V. PAN'KOV, P. PETUKHOV, E.N. PLISKOVSKY, M.I. ROZANOV, E.V. RJABOV, V.D. RUSHAY, G.B. SAFRONOV, F. SIMKOVIC, V. SKURIKHIN, B.A. SHOIBONOV, A.G. SOLOVJEV, M.N. SOROKOVIKOV, M.D. SHELEPOV, I. SHTEKL, O.V. SUVOROVA, V.A. TABOLENKO, B.A. TARASHANSKY, S.A. YAKOVLEV, A.V. ZAGORODNIKOV, and V.L. ZURBANOV

Published
2018
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