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1. Increasing the sensitivity of the Baikal-GVD neutrino telescope by using external strings of optical modules

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Kebkal, K. G., Kebkal, V. K., Khatun, A., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kulepov, V. F., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Seitova, D., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Suvorova, O. V., Tabolenko, V. A., Yablokova, Y. V., and Zaborov, D. N.
Subjects: High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract: The deployment of the Baikal-GVD deep underwater neutrino telescope is continuing in Lake Baikal. By April 2022, ten clusters of the telescope were put into operation, with 2880 optical modules in total. One of the relevant tasks in this context is to study the possibilities of increasing the efficiency of the detector based on the experience of its operation and the results obtained at other neutrino telescopes in recent years. In this paper, a variant of optimizing the configuration of the telescope is considered, based on the installation of additional strings of optical modules between the clusters (external strings). An experimental version of the external string was installed in Lake Baikal in April 2022. This paper presents a first estimate of the impact of adding external strings on the neutrino detection efficiency, as well as the technical implementation of the detection and data acquisition systems of the external string and first results of its in-situ tests., Comment: 12 pages, in Russian language, 7 figures, 1 Table
Published: 2022

2. Diffuse neutrino flux measurements with the Baikal-GVD neutrino telescope

Author: Baikal Collaboration, Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Kebkal, K. G., Kebkal, V. K., Khatun, A., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kulepov, V. F., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Seitova, D., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Suvorova, O. V., Tabolenko, V. A., Yablokova, Y. V., and Zaborov, D. N.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We report on the first observation of the diffuse cosmic neutrino flux with the Baikal-GVD neutrino telescope. Using cascade-like events collected by Baikal-GVD in 2018--2021, a significant excess of events over the expected atmospheric background is observed. This excess is consistent with the high-energy diffuse cosmic neutrino flux observed by IceCube. The null cosmic flux assumption is rejected with a significance of 3.05$\sigma$. Assuming a single power law model of the astrophysical neutrino flux with identical contribution from each neutrino flavor, the following best-fit parameter values are found: the spectral index $\gamma_{astro}$ = $2.58^{+0.27}_{-0.33}$ and the flux normalization $\phi_{astro}$ = 3.04$^{+1.52}_{-1.21}$ per one flavor at 100 TeV., Comment: 9 pages; 5 figures; 2 tables
Published: 2022
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3. Increasing the Sensitivity of the Baikal-GVD Neutrino Telescope Using External Strings of Optical Modules

Author: 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, Zh.-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., and Yablokova, Y. V.
Published: 2023
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4. The Baikal-GVD neutrino telescope: search for high-energy cascades

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: Baikal-GVD is a neutrino telescope currently under construction in Lake Baikal. GVD is formed by multi-meganton subarrays (clusters). The design of Baikal-GVD allows one to search for astrophysical neutrinos already at early phases of the array construction. We present here preliminary results of a search for high-energy neutrinos with GVD in 2019-2020., Comment: Submitted to Proc. of the 37th International Cosmic Ray Conference (ICRC 2021), PoS-1144, July 12th -- 23rd, 2021, Online -- Berlin, Germany. 8 pages, 7 figures
Published: 2021

5. Development of the Double Cascade Reconstruction Techniques in the Baikal-GVD Neutrino Telescope

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract: The Baikal-GVD is a neutrino telescope under construction in Lake Baikal. The main goal of the Baikal-GVD is to observe neutrinos via detecting the Cherenkov radiation of the secondary charged particles originating in the interactions of neutrinos. In 2021, the installation works concluded with 2304 optical modules installed in the lake resulting in effective volume approximately 0.4 km$^{3}$. In this paper, the first steps in the development of double cascade reconstruction techniques are presented., Comment: Presented at the 37th International Cosmic Ray Conference (ICRC 2021)
Published: 2021
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6. Positioning system for Baikal-GVD

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract: Baikal-GVD is a kilometer scale neutrino telescope currently under construction in Lake Baikal. Due to water currents in Lake Baikal, individual photomultiplier housings are mobile and can drift away from their initial position. In order to accurately determine the coordinates of the photomultipliers, the telescope is equipped with an acoustic positioning system. The system consists of a network of acoustic modems, installed along the telescope strings and uses acoustic trilateration to determine the coordinates of individual modems. This contribution discusses the current state of the positioning in Baikal-GVD, including the recent upgrade to the acoustic modem polling algorithm., Comment: Presented at 37th International Cosmic Ray Conference (ICRC 2021)
Published: 2021
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7. An efficient hit finding algorithm for Baikal-GVD muon reconstruction

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Data Analysis, Statistics and Probability
Abstract: The Baikal-GVD is a large scale neutrino telescope being constructed in Lake Baikal. The majority of signal detected by the telescope are noise hits, caused primarily by the luminescence of the Baikal water. Separating noise hits from the hits produced by Cherenkov light emitted from the muon track is a challenging part of the muon event reconstruction. We present an algorithm that utilizes a known directional hit causality criterion to contruct a graph of hits and then use a clique-based technique to select the subset of signal hits.The algorithm was tested on realistic detector Monte-Carlo simulation for a wide range of muon energies and has proved to select a pure sample of PMT hits from Cherenkov photons while retaining above 90\% of original signal., Comment: Presented at the 37th International Cosmic Ray Conference (ICRC 2021)
Published: 2021
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8. Method and portable bench for tests of the laser optical calibration system components for the Baikal-GVD underwater neutrino Cherenkov telescope

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fialkovski, L. Fajt f S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
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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9. Methods for the suppression of background cascades produced along atmospheric muon tracks in the Baikal-GVD

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract: The Baikal-GVD (Gigaton Volume Detector) is a km$^{3}$- scale neutrino telescope located in Lake Baikal. Currently (year 2021) the Baikal-GVD is composed of 2304 optical modules divided to 8 independent detection units, called clusters. Specific neutrino interactions can cause Cherenkov light topology, referred to as a cascade. However, cascade-like events originate from discrete stochastic energy losses along muon tracks. These cascades produce the most abundant background in searching for high-energy neutrino cascade events. Several methods have been developed, optimized, and tested to suppress background cascades., Comment: Presented at the 37th International Cosmic Ray Conference (ICRC 2021)
Published: 2021
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10. Data Quality Monitoring system of the Baikal-GVD experiment

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Physics - Instrumentation and Detectors
Abstract: The main purpose of the Baikal-GVD Data Quality Monitoring (DQM) system is to monitor the status of the detector and collected data. The system estimates quality of the recorded signals and performs the data validation. The DQM system is integrated with the Baikal-GVD's unified software framework ("BARS") and operates in quasi-online manner. This allows us to react promptly and effectively to the changes in the telescope conditions., Comment: Contribution from the Baikal-GVD Collaboration presented at the 37th International Cosmic Ray Conference, Online - Berlin, Germany, 12-23 July 2021. Proceeding: PoS-ICRC2021-1094
Published: 2021
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11. Multi-messenger and real-time astrophysics with the Baikal-GVD telescope

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: The Baikal-GVD deep underwater neutrino experiment participates in the international multi-messenger program on discovering the astrophysical sources of high energy fluxes of cosmic particles, while being at the stage of deployment with a gradual increase of its effective volume to the scale of a cubic kilometer. In April 2021 the effective volume of the detector has been reached 0.4 km3 for cascade events with energy above 100 TeV generated by neutrino interactions in Lake Baikal. The alarm system in real-time monitoring of the celestial sphere was launched at the beginning of 2021, that allows to form the alerts of two ranks like "muon neutrino" and "VHE cascade". Recent results of fast follow-up searches for coincidences of Baikal-GVD high energy cascades with ANTARES/TAToO high energy neutrino alerts and IceCube GCN messages will be presented, as well as preliminary results of searches for high energy neutrinos in coincidence with the magnetar SGR 1935+2154 activity in period of radio and gamma burst in 2020., Comment: Submitted to Proc. of the 37th International Cosmic Ray Conference (ICRC 2021), PoS-0946, July 12th -- 23rd, 2021, Online -- Berlin, Germany. 8 pages, 5 figures
Published: 2021

12. Follow up of the IceCube alerts with the Baikal-GVD telescope

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

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: High Energy Physics - Phenomenology, Astrophysics - High Energy Astrophysical Phenomena
Abstract: We present data on the Baikal water luminescence collected with the Baikal-GVD neutrino telescope. This three-dimensional array of photo-sensors allows the observation of time and spatial variations of the ambient light field. We report on annual increase of luminescence activity in years 2018-2020. We observed a unique event of a highly luminescent layer propagating upwards with a maximum speed of 28 m/day for the first time., Comment: Contribution at 37th International Cosmic Ray Conference (ICRC 2021). arXiv admin note: text overlap with arXiv:1908.06509
Published: 2021
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14. Proposal for fiber optic data acquisition system for Baikal-GVD

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract: The first stage of the construction of the deep underwater neutrino telescope Baikal-GVD is planned to be completed in 2024. The second stage of the detector deployment is planned to be carried out using a data acquisition system based on fibre optic technologies, which will allow for increased data throughput and more flexible trigger conditions. A dedicated test facility has been built and deployed at the Baikal-GVD site to test the new technological solutions. We present the principles of operation and results of tests of the new data acquisition system., Comment: 4 pages, 1 figure, presented at the Conference VLVnT 2021
Published: 2021
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15. Automatic data processing for Baikal-GVD neutrino observatory

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract: Baikal-GVD is a gigaton-scale neutrino observatory under construction in Lake Baikal. It currently produces about 100 GB of data every day. For their automatic processing, the Baikal Analysis and Reconstruction software (BARS) was developed. At the moment, it includes such stages as hit extraction from PMT waveforms, assembling events from raw data, assigning timestamps to events, determining the position of the optical modules using an acoustic positioning system, data quality monitoring, muon track and cascade reconstruction, as well as the alert signal generation. These stages are implemented as C++ programs which are executed sequentially one after another and can be represented as a directed acyclic graph. The most resource-consuming programs run in parallel to speed up processing. A separate Python package based on the luigi package is responsible for program execution control. Additional information such as the program execution status and run metadata are saved into a central database and then displayed on the dashboard. Results can be obtained several hours after the run completion., Comment: Presented at the 37th International Cosmic Ray Conference (ICRC 2021)
Published: 2021
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16. Measuring muon tracks in Baikal-GVD using a fast reconstruction algorithm

Author: Collaboration, Baikal-GVD, Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: High Energy Physics - Experiment, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The Baikal Gigaton Volume Detector (Baikal-GVD) is a km$^3$-scale neutrino detector currently under construction in Lake Baikal, Russia. The detector consists of several thousand optical sensors arranged on vertical strings, with 36 sensors per string. The strings are grouped into clusters of 8 strings each. Each cluster can operate as a stand-alone neutrino detector. The detector layout is optimized for the measurement of astrophysical neutrinos with energies of $\sim$ 100 TeV and above. Events resulting from charged current interactions of muon (anti-)neutrinos will have a track-like topology in Baikal-GVD. A fast $\chi^2$-based reconstruction algorithm has been developed to reconstruct such track-like events. The algorithm has been applied to data collected in 2019 from the first five operational clusters of Baikal-GVD, resulting in observations of both downgoing atmospheric muons and upgoing atmospheric neutrinos. This serves as an important milestone towards experimental validation of the Baikal-GVD design. The analysis is limited to single-cluster data, favoring nearly-vertical tracks., Comment: 15 pages, 6 figures, 1 table, to be published in Eur. Phys. J. C
Published: 2021
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17. Results from Reconstructing a Neutrino in the Track Channel at the Deep-Water BAIKAL-GVD Telescope

Author: Avrorin, A. V., Avrorin, A. D., Aynutdinov, V. M., Allakhverdyan, V. A., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Budnev, N. M., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Dvornický, R., Dzhilkibaev, Zh.-A. M., Dik, V. Ya., 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, Yu. 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., Solovjev, A. G., Sorokovikov, M. N., Stromakov, A. P., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Fajt, L., Khatun, A., Khramov, E. V., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Štekl, I., Eckerová, E., and Yablokova, Y. V.
Published: 2023
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18. Status of the Baikal-GVD Neutrino Telescope and Main Results

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh.-A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Kebkal, K. G., Kebkal, V. K., Khatun, A., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Seitova, D., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A.V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., and Zaborov, D. N.
Published: 2023
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19. Tracking IceCube Neutrino Alerts with the Deep-Water BAIKAL-GVD Telescope

Author: Avrorin, A. V., Avrorin, A. D., Aynutdinov, V. M., Allakhverdyan, V. A., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Budnev, N. M., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Dvornický, R., Dzhilkibaev, Zh.-A. M., Dik, V. Ya., 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, Yu. 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., Solovjev, A. G., Sorokovikov, M. N., Stromakov, A. P., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Fajt, L., Khatun, A., Khramov, E. V., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Štekl, I., Eckerová, E., and Yablokova, Y. V.
Published: 2023
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20. Data Quality Monitoring system in the Baikal-GVD experiment

Author: Collaboratio, Baikal GVD, Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannash, R., Belolaptikov, I. A, Brudanin, V. B., Budnev, N. M., Domogatsky, G. V., Doroshenko, A. A., Dvornicky, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Fajth, L., Fialkovsky, S. V, Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Ivanov, R., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kozhin, A. V., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Milenin, M. B., Mirgazov, R. A., Nazari, V., Panfilov, A. I., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rjabov, E. V., Rushay, V. D., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Simkovic, F., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Stekl, I., Suvorova, O. V., Sushenok, E. O., Tabolenko, V. A., Tarashansky, B. A., and Yakovlev, S. A.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The quality of the incoming experimental data has a significant importance for both analysis and running the experiment. The main point of the Baikal-GVD DQM system is to monitor the status of the detector and obtained data on the run-by-run based analysis. It should be fast enough to be able to provide analysis results to detector shifter and for participation in the global multi-messaging system., Comment: Contribution from the Baikal-GVD Collaboration presented at the 36th International Cosmic Ray Conference, Madison, Wisconsin, USA, 24 July - 1 August 2019. Proceeding: PoS-ICRC2019-0874
Published: 2019

21. The optical noise monitoring systems of Lake Baikal environment for the Baikal-GVD telescope

Author: Collaboration, Baikal-GVD, Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannash, R., Belolaptikov, I. A, Brudanin, V. B., Budnev, N. M., Domogatsky, G. V., Doroshenko, A. A., Dvornicky, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Fajth, L., Fialkovsky, S. V, Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Ivanov, R., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kozhin, A. V., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Milenin, M. B., Mirgazov, R. A., Nazari, V., Panfilov, A. I., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rjabov, E. V., Rushay, V. D., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Simkovic, F., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Stekl, I., Suvorova, O. V., Sushenok, E. O., Tabolenko, V. A., Tarashansky, B. A., and Yakovlev, S. A.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We present data on the luminescence of the Baikal water medium collected with the Baikal-GVD neutrino telescope. This three-dimensional array of light sensors allows the observation of time and spatial variations of the ambient light field. We report on observation of an increase of luminescence activity in 2016 and 2018. On the contrary, we observed practically constant optical noise in 2017. An agreement has been found between two independent optical noise data sets. These are data collected with online monitoring system and the trigger system of the cluster., Comment: Contribution from the Baikal-GVD Collaboration presented at the 36th International Cosmic Ray Conference, Madison, Wisconsin, USA, 24 July - 1 August 2019. Proceeding: PoS-ICRC2019-0875
Published: 2019

22. The inter-cluster time synchronization systems within the Baikal-GVD detector

Author: Collaboration, Baikal-GVD, Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannash, R., Belolaptikov, I. A, Brudanin, V. B., Budnev, N. M., Domogatsky, G. V., Doroshenko, A. A., Dvornicky, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Fajth, L., Fialkovsky, S. V, Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Ivanov, R., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kozhin, A. V., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Milenin, M. B., Mirgazov, R. A., Nazari, V., Panfilov, A. I., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rjabov, E. V., Rushay, V. D., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Simkovic, F., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Stekl, I., Suvorova, O. V., Sushenok, E. O., Tabolenko, V. A., Tarashansky, B. A., and Yakovlev, S. A.
Subjects: Physics - Instrumentation and Detectors, Astrophysics - High Energy Astrophysical Phenomena
Abstract: Currently in Lake Baikal, a new generation neutrino telescope is being deployed: the deep underwater Cherenkov detector of a cubic-kilometer scale Baikal-GVD. Completion of the first stage of the telescope construction is planned for 2021 with the implementation of 9 clusters. Each cluster is a completely independent unit in all the aspects: triggering, calibration, data transfer, etc. A high-energy particle might leave its trace in more than a single cluster. To be able to merge events caused by such a particle in more clusters, the appropriate inter-cluster time synchronization is vital., Comment: Contribution from the Baikal-GVD Collaboration presented at the 36th International Cosmic Ray Conference, Madison, Wisconsin, USA, 24 July - 1 August 2019. Proceeding: PoS-ICRC2019-0877
Published: 2019

23. A positioning system for Baikal-GVD

Author: Collaboration, Baikal-GVD, Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannash, R., Belolaptikov, I. A, Brudanin, V. B., Budnev, N. M., Domogatsky, G. V., Doroshenko, A. A., Dvornicky, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Fajth, L., Fialkovsky, S. V, Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Ivanov, R., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kozhin, A. V., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Milenin, M. B., Mirgazov, R. A., Nazari, V., Panfilov, A. I., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rjabov, E. V., Rushay, V. D., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Simkovic, F., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Stekl, I., Suvorova, O. V., Sushenok, E. O., Tabolenko, V. A., Tarashansky, B. A., and Yakovlev, S. A.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: A cubic kilometer scale neutrino telescope Baikal-GVD is currently under construction in Lake Baikal. Baikal-GVD is designed to detect Cerenkov radiation from products of astrophysical neutrino interactions with Baikal water by a lattice of photodetectors submerged between the depths of 1275 and 730 m. The detector components are mounted on flexible strings and can drift from their initial positions upwards to tens of meters. This introduces positioning uncertainty which translates into a timing error for Cerenkov signal registration. A spatial positioning system has been developed to resolve this issue. In this contribution, we present the status of this system, results of acoustic measurements and an estimate of positioning error for an individual component., Comment: Contribution from the Baikal-GVD Collaboration presented at the 36th International Cosmic Ray Conference, Madison, Wisconsin, USA, 24 July - 1 August 2019. Proceeding: PoS-ICRC2019-1012
Published: 2019

24. The Baikal-GVD detector calibration

Author: Collaboration, Baikal-GVD, Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannash, R., Belolaptikov, I. A, Brudanin, V. B., Budnev, N. M., Domogatsky, G. V., Doroshenko, A. A., Dvornicky, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Fajth, L., Fialkovsky, S. V, Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Ivanov, R., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kozhin, A. V., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Milenin, M. B., Mirgazov, R. A., Nazari, V., Panfilov, A. I., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rjabov, E. V., Rushay, V. D., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Simkovic, F., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Stekl, I., Suvorova, O. V., Sushenok, E. O., Tabolenko, V. A., Tarashansky, B. A., and Yakovlev, S. A.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Physics - Instrumentation and Detectors
Abstract: In April 2019, the Baikal-GVD collaboration finished the installation of the fourth and fifth clusters of the neutrino telescope Baikal-GVD. Momentarily, 1440 Optical Modules (OM) are installed in the largest and deepest freshwater lake in the world, Lake Baikal, instrumenting 0.25 cubic km of sensitive volume. The Baikal-GVD is thus the largest neutrino telescope on the Northern Hemisphere. The first phase of the detector construction is going to be finished in 2021 with 9 clusters, 2592 OMs in total, however the already installed clusters are stand-alone units which are independently operational and taking data from their commissioning. Huge number of channels as well as strict requirements for the precision of the time and charge calibration (ns, p.e.) make calibration procedures vital and very complex tasks. The inter cluster time calibration is performed with numerous calibration systems. The charge calibration is carried out with a Single Photo-Electron peak. The various data acquired during the last three years in regular and special calibration runs validate successful performance of the calibration systems and of the developed calibration techniques. The precision of the charge calibration has been improved and the time dependence of the obtained calibration parameters have been cross-checked. The multiple calibration sources verified a 1.5 - 2.0 ns precision of the in-situ time calibrations. The time walk effect has been studied in detail with in situ specialized calibration runs., Comment: Contribution from the Baikal-GVD Collaboration presented at the 36th International Cosmic Ray Conference, Madison, Wisconsin, USA, 24 July - 1 August 2019. Proceeding: PoS-ICRC2019-0878
Published: 2019

25. The Baikal-GVD neutrino telescope: First results of multi-messenger studies

Author: Collaboration, Baikal-GVD, Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannash, R., Belolaptikov, I. A, Brudanin, V. B., Budnev, N. M., Domogatsky, G. V., Doroshenko, A. A., Dvornicky, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Fajth, L., Fialkovsky, S. V, Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Ivanov, R., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kozhin, A. V., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Milenin, M. B., Mirgazov, R. A., Nazari, V., Panfilov, A. I., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rjabov, E. V., Rushay, V. D., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Simkovic, F., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Stekl, I., Suvorova, O. V., Sushenok, E. O., Tabolenko, V. A., Tarashansky, B. A., and Yakovlev, S. A.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Multi-messenger astronomy is a powerful tool to study the physical processes driving the non-thermal Universe. A combination of observations in cosmic rays, neutrinos, photons of all wavelengths and gravitational waves is expected. The alert system of the Baikal-GVD detector under construction will allow for a fast, on-line reconstruction of neutrino events recorded by the Baikal-GVD telescope and - if predefined conditions are satisfied - for the formation of an alert message to other communities. The preliminary results of searches for high-energy neutrinos in coincidence with GW170817/GRB170817A using the cascade mode of neutrino detection are discussed. Two Baikal-GVD clusters were operating during 2017. The zenith angle of NGC 4993 at the detection time of the GW170817 was 93.3 degrees. No events spatially coincident with GRB170817A were found. Given the non-detection of neutrino events associated with GW170817, upper limits on the neutrino fluence were established., Comment: Contribution from the Baikal-GVD Collaboration presented at the 36th International Cosmic Ray Conference, Madison, Wisconsin, USA, 24 July - 1 August 2019. Proceeding: PoS-ICRC2019-1013
Published: 2019

26. Search for cascade events with Baikal-GVD

Author: Collaboration, Baikal-GVD, Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannash, R., Belolaptikov, I. A, Brudanin, V. B., Budnev, N. M., Domogatsky, G. V., Doroshenko, A. A., Dvornicky, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Fajth, L., Fialkovsky, S. V, Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Ivanov, R., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kozhin, A. V., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Milenin, M. B., Mirgazov, R. A., Nazari, V., Panfilov, A. I., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rjabov, E. V., Rushay, V. D., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Simkovic, F., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Stekl, I., Suvorova, O. V., Sushenok, E. O., Tabolenko, V. A., Tarashansky, B. A., and Yakovlev, S. A.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: Baikal-GVD is a next generation, kilometer-scale neutrino telescope currently under construction in Lake Baikal. GVD is formed by multi-megaton sub-arrays (clusters) and is designed for the detection of astrophysical neutrino fluxes at energies from a few TeV up to 100 PeV. The design of the Baikal-GVD allows one to search for astrophysical neutrinos with flux values measured by IceCube already at early phases of the array construction. We present here preliminary results of the search for high-energy neutrinos via the cascade mode with the Baikal-GVD neutrino telescope., Comment: Contribution from the Baikal-GVD Collaboration presented at the 36th International Cosmic Ray Conference, Madison, Wisconsin, USA, 24 July - 1 August 2019. Proceeding: PoS-ICRC2019-0873
Published: 2019

27. Neutrino Telescope in Lake Baikal: Present and Future

Author: Collaboration, Baikal-GVD, Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannash, R., Belolaptikov, I. A, Brudanin, V. B., Budnev, N. M., Domogatsky, G. V., Doroshenko, A. A., Dvornicky, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Fajth, L., Fialkovsky, S. V, Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Ivanov, R., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kozhin, A. V., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Milenin, M. B., Mirgazov, R. A., Nazari, V., Panfilov, A. I., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rjabov, E. V., Rushay, V. D., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Simkovic, F., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Stekl, I., Suvorova, O. V., Sushenok, E. O., Tabolenko, V. A., Tarashansky, B. A., and Yakovlev, S. A.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: A significant progress in the construction and operation of the Baikal Gigaton Volume Detector in Lake Baikal, the largest and deepest freshwater lake in the world, is reported. The effective volume of the detector for neutrino initiated cascades of relativistic particles with energy above 100 TeV has been increased up to about 0.25 cubic kilometer. This unique scientific facility, the largest operating neutrino telescope in Northern Hemisphere, allows already to register two to three events per year from astrophysical neutrinos with energies exceeding 100 TeV. Preliminary results obtained with data recorded in 2016-2018 are announced. Multimessenger approach is used to relate finding of cosmic neutrinos with those of classical astronomers, with X-ray or gamma-ray observations and the gravitational wave events., Comment: Contribution from the Baikal-GVD Collaboration presented at the 36th International Cosmic Ray Conference, Madison, Wisconsin, USA, 24 July - 1 August 2019. Proceeding: PoS-ICRC2019-1011
Published: 2019

28. Search for high-energy neutrinos from GW170817 with Baikal-GVD neutrino telescope

Author: Collaboration, Baikal-GVD, Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannash, R., Belolaptikov, I. A., Brudanin, V. B., Budnev, N. M., Doroshenko, A. A., Domogatsky, G. V., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Fajt, L., Fialkovsky, S. V., Gafarov, A. R., Golubkov, K. V., Gres, T. I., Honz, Z., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. P., Koshechkin, A. P., Kozhin, V. A., Kulepov, V. F., Kuleshov, D. A., Milenin, M. B., Mirgazov, R. A., Osipova, E. R., Panfilov, A. I., Pan'kov, L. V., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rjabov, E. V., Rushay, V. D., Safronov, G. B., Simkovic, F., Skurkhin, A. V., Shoibonov, B. A., Solovjev, A. G., Sorokovikov, M. N., Shelepov, M. D., Suvorova, O. V., Shtekl, I., Tabolenko, V. A., Tarashansky, B. A., Yakovlev, S. A., Zagorodnikov, A. V., and Zurbanov, V. L.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment
Abstract: The Advanced LIGO and Advanced Virgo observatories recently discovered gravitational waves from a binary neutron star inspiral. A short gamma-ray burst (GRB) that followed the merger of this binary was also recorded by Fermi-GBM and INTEGRAL, indicating particle acceleration by the source. The precise location of the event was determined by optical detections of emission following the merger. We searched for high-energy neutrinos from the merger in the TeV - 100 PeV energy range using Baikal-GVD. No neutrinos directionally coincident with the source were detected within $\pm$500 s around the merger time, as well as during a 14-day period after the GW detection. We derived 90% confidence level upper limits on the neutrino fluence from GW170817 during a $\pm$500 s window centered on the GW trigger time, and a 14-day window following the GW signal under the assumption of an $E^{-2}$ neutrino energy spectrum., Comment: 4 pages, 4 figures
Published: 2018

29. Baikal-GVD: status and prospects

Author: Collaboration, Baikal-GVD, Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannash, R., Belolaptikov, I. A., Brudanin, V. B., Budnev, N. M., Doroshenko, A. A., Domogatsky, G. V., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Fajt, L., Fialkovsky, S. V., Gafarov, A. R., Golubkov, K. V., Gres, T. I., Honz, Z., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. P., Koshechkin, A. P., Kozhin, V. A., Kulepov, V. F., Kuleshov, D. A., Milenin, M. B., Mirgazov, R. A., Osipova, E. R., Panfilov, A. I., Pan'kov, L. V., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rjabov, E. V., Rushay, V. D., Safronov, G. B., Simkovic, F., Shoibonov, B. A., Solovjev, A. G., Sorokovikov, M. N., Shelepov, M. D., Suvorova, O. V., Shtekl, I., Tabolenko, V. A., Tarashansky, B. A., Yakovlev, S. A., Zagorodnikov, A. V., and Zurbanov, V. L.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment, High Energy Physics - Phenomenology, Physics - Instrumentation and Detectors
Abstract: Baikal-GVD is a next generation, kilometer-scale neutrino telescope under construction in Lake Baikal. It is designed to detect astrophysical neutrino fluxes at energies from a few TeV up to 100 PeV. GVD is formed by multi-megaton subarrays (clusters). The array construction started in 2015 by deployment of a reduced-size demonstration cluster named "Dubna". The first cluster in its baseline configuration was deployed in 2016, the second in 2017 and the third in 2018. The full scale GVD will be an array of ~10000 light sensors with an instrumented volume of about 2 cubic km. The first phase (GVD-1) is planned to be completed by 2020-2021. It will comprise 8 clusters with 2304 light sensors in total. We describe the design of Baikal-GVD and present selected results obtained in 2015-2017., Comment: 9 pages, 8 figures. Conference proceedings for QUARKS2018
Published: 2018

30. Deep-Underwater Cherenkov Detector in Lake Baikal

Author: Avrorin, A.V., Avrorin, A. D., Ayinutdinov, V. M., Allakhverdyan, V. A., Banash, P., Bardachova, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gres’, T. I., Dwornitski, R., Dzhilkibaev, Zh.-A. M., Dik, V. Ya., Domogatskii, G. V., Doroshenko, A. A., Dyachok, A. N., Elzhov, T. V., Zaborov, D. N., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Kozhin, V. A., Kolbin, M. M., Konishchev, K. V., Kopanski, K. A., Korobchenko, A. V., Koshechkin, A. P., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Maletski, P., Malyshkin, Yu. M., Milenin, M. B., Mirgazov, R. R., Nazari, V., Naumov, D. V., Noga, V., Petukhov, D. P., Pliskovskii, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Stromakov, A. P., Suvorova, O. V., Sushenok, E. O., Tabolenko, V. A., Tarashchanskii, B. A., Fait, L., Fialkovskii, S. V., Khramov, E. V., Shaibonov, B. A., Shelepov, M. D., Šimkovic, F., Stekl, I., Etskerova, E., Yablokova, Yu. V., and Yakovlev, S. A.
Published: 2022
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31. Deep-Water Neutrino Telescope in Lake Baikal

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh.-A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovsky, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Taraschansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Published: 2021
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32. High-Energy Neutrino Astronomy and the Baikal-GVD Neutrino Telescope

Author: Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardáčová, Z., Belolaptikov, I. A., Dik, V., Brudanin, V. B., Budnev, N. M., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh.-A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Ivanov, R. A., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S., and Zaborov, D. N.
Published: 2021
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33. High-Energy Neutrino Follow-up at the Baikal-GVD Neutrino Telescope

Author: Avrorin, A. V., Avrorin, A. D., Aynutdinov, V. M., Bannasch, R., Bardáčová, Z., Belolaptikov, I. A., Brudanin, V. B., Budnev, N. M., Dik, V. Ya., Domogatsky, G. V., Doroshenko, A. A., Dvornicky, R., Dyachok, A. N., Dzhilkibaev, Zh.-A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Ivanov, R. A., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konishchev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Milenin, M. V., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashchansky, B. A., Yablokova, Yu. V., Yakovlev, S. A., and Zaborov, D. N.
Published: 2021
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34. Baikal-GVD Experiment

Author: Avrorin, A. V., Avrorin, A. D., Aynutdinov, V. M., Bannasch, R., Bardacova, Z., Belolaptikov, I. A., Brudanin, V. B., Budnev, N. M., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gres, T. I., Dvornicky, R., Domogatsky, G. V., Doroshenko, A. A., Dzhilkibaev, Zh.-A. M., Dik, V. Ya., Dyachok, A. N., Eckerova, E., Zaborov, D. N., Ivanov, R. A., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Kozhin, V. A., Kolbin, M. M., Konishev, K. V., Korobchenko, A. V., Koshechkin, A. P., Kruglov, M. V., Krjukov, M. K., Kulepov, V. F., Milenin, M. B., Mirgazov, R. A., Nazari, V., Naumov, D. V., Panfilov, A. I., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Rjabov, E. V., Safronov, G. B., Simkovic, F., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Stekl, I., Suvorova, O. V., Sushenok, E. O., Tabolenko, V. A., Taraschansky, B. A., Fajt, L., Fialkovsky, S. V., Khramov, E. V., Shaibonov, B. A., Shelepov, M. D., and Yakovlyev, S. A.
Published: 2020
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35. Measuring muon tracks in Baikal-GVD using a fast reconstruction algorithm

Author: Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Bardačová, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh.-A. M., Eckerová, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopański, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., Šimkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., Štekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Published: 2021
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36. Search for High-Energy Neutrinos from GW170817 with the Baikal-GVD Neutrino Telescope

Author: Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannash, R., Belolaptikov, I. A., Brudanin, V. M., Budnev, N. M., Doroshenko, A. A., Domogatsky, G. V., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh.-A. M., Fajt, L., Fialkovsky, S. V., Gafarov, A. R., Golubkov, K. V., Gres, T. I., Honz, Z., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. P., Koshechkin, A. P., Kozhin, V. A., Kulepov, V. F., Kuleshov, D. A., Milenin, M. B., Mirgazov, R. A., Osipova, E. R., Panfilov, A. I., Pan’kov, L. V., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rjabov, E. V., Rushay, V. D., Safronov, G. B., Simkovic, F., Skurikhin, A. V., Shoibonov, B. A., Solovjev, A. G., Sorokovikov, M. N., Shelepov, M. D., Shtekl, I., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yakovlev, S. A., Zagorodnikov, A. V., and Zurbanov, V. L.
Published: 2018
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37. The Baikal-GVD telescope follow-up analysis of the IceCube neutrino alerts

Author: Dik, Viktoriya, primary, Suvorova, O. V., additional, Allakhverdyan, V. A., additional, Avrorin, А. D., additional, Avrorin, A. V., additional, Aynutdinov, V. M., additional, Bardаčová, Z., additional, Belolaptikov, I. A., additional, Borina, I. V., additional, Budnev, N. M., additional, Domogatsky, G. V., additional, Doroshenko, A. A., additional, Dvornický, R., additional, Dyachok, A. N., additional, Dzhilkibaev, Zh.-A. M., additional, Eckerová, Eliška, additional, Elzhov, T. V., additional, Fajt, L., additional, Gafarov, A. R., additional, Golubkov, K. V., additional, Gorshkov, N. S., additional, Gress, T. I., additional, Kebkal, K. G., additional, Kebkal, V. K., additional, Khatun, A., additional, Khramov, E. V., additional, Kolbin, M. M., additional, Konischev, K. V., additional, Korobchenko, A. V., additional, Koshechkin, A. P., additional, Kozhin, V. A., additional, V. Kruglov, M., additional, Kulepov, V. F., additional, Malyshkin, Y. M., additional, Milenin, M. B., additional, Mirgazov, R. R., additional, Naumov, D. V., additional, Nazari, V., additional, Petukhov, D. P., additional, Pliskovsky, E. N., additional, Rozanov, M. I., additional, Rushay, V. D., additional, Ryabov, E. V., additional, Safronov, G. B., additional, Seitova, D., additional, Shaybonov, B. A., additional, Shelepov, M. D., additional, Šimkovic, F., additional, Sirenko, A. E., additional, Skurikhin, A. V., additional, Solovjev, A. G., additional, Sorokovikov, M. N., additional, Štekl, I., additional, Stromakov, A. P., additional, Tabolenko, V. A., additional, Yablokova, Y. V., additional, and Zaborov, D. N., additional
Published: 2023
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38. Development of the Double Cascade Reconstruction Technique in the Baikal-GVD Neutrino Telescope

Author: Eckerová, Eliška, primary, Allakhverdyan, V. A., additional, Avrorin, А. D., additional, Avrorin, A. V., additional, Aynutdinov, V. M., additional, Bardačová, Zuzana, additional, Belolaptikov, I. A., additional, Borina, I. V., additional, Budnev, N. M., additional, Dik, V. Y., additional, Domogatsky, G. V., additional, Doroshenko, A. A., additional, Dvornický, R., additional, Dyachok, A. N., additional, Dzhilkibaev, Zh.-A. M., additional, Elzhov, T. V., additional, Fajt, L., additional, Gafarov, A. R., additional, Golubkov, K. V., additional, Gorshkov, N. S., additional, Gress, T. I., additional, Kebkal, K. G., additional, Kebkal, O. G., additional, Khatun, A., additional, Khramov, E. V., additional, Kolbin, M. M., additional, Konischev, K. V., additional, Korobchenko, A. V., additional, Koshechkin, A. P., additional, Kozhin, V. A., additional, V. Kruglov, M., additional, Kulepov, V. F., additional, Malyshkin, Y. M., additional, Milenin, M. B., additional, Mirgazov, R. R., additional, Naumov, D. V., additional, Nazari, V., additional, Petukhov, D. P., additional, Pliskovsky, E. N., additional, Rozanov, M. I., additional, Rushay, V. D., additional, Ryabov, E. V., additional, Safronov, G. B., additional, Seitova, D., additional, Shaybonov, B. A., additional, Shelepov, M. D., additional, Šimkovic, F., additional, Sirenko, A. E., additional, Skurikhin, A. V., additional, Solovjev, A. G., additional, Sorokovikov, M. N., additional, Štekl, I., additional, Stromakov, A. P., additional, Suvorova, O. V., additional, Tabolenko, V. A., additional, Yablokova, Y. V., additional, and Zaborov, D. N., additional
Published: 2023
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39. Selection techniques of neutrino-induced cascades in the Baikal-GVD neutrino telescope

Author: Bardačová, Zuzana, primary, Allakhverdyan, V. A., additional, Avrorin, А. D., additional, Avrorin, A. V., additional, Aynutdinov, V. M., additional, Belolaptikov, I. A., additional, Borina, I. V., additional, Budnev, N. M., additional, Dik, V. Y., additional, Domogatsky, G. V., additional, Doroshenko, A. A., additional, Dyachok, A. N., additional, Dvornický, Ratislav, additional, Dzhilkibaev, Zh.-A. M., additional, Eckerová, Eliška, additional, Elzhov, T. V., additional, Fajt, L., additional, Gafarov, A. R., additional, Golubkov, K. V., additional, Gorshkov, N. S., additional, Gress, T. I., additional, Kebkal, K. G., additional, Kebkal, O. G., additional, Khatun, A., additional, Khramov, E. V., additional, Kolbin, M. M., additional, Konischev, K. V., additional, Korobchenko, A. V., additional, Koshechkin, A. P., additional, Kozhin, V. A., additional, V. Kruglov, M., additional, Kulepov, V. F., additional, Malyshkin, Y. M., additional, Milenin, M. B., additional, Mirgazov, R. R., additional, Naumov, D. V., additional, Nazari, V., additional, Petukhov, D. P., additional, Pliskovsky, E. N., additional, Rozanov, M. I., additional, Rushay, V. D., additional, Ryabov, E. V., additional, Safronov, G. B., additional, Seitova, D., additional, Shaybonov, B. A., additional, Shelepov, M. D., additional, Šimkovic, F., additional, Sirenko, A. E., additional, Skurikhin, A. V., additional, Solovjev, A. G., additional, Sorokovikov, M. N., additional, Štekl, I., additional, Stromakov, A. P., additional, Suvorova, O. V., additional, Tabolenko, V. A., additional, Yablokova, Y. V., additional, and Zaborov, D. N., additional
Published: 2023
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40. BAIKAL-GVD: The New-Generation Neutrino Telescope in Lake Baikal

Author: Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannash, R., Belolaptikov, I. A., Brudanin, V. B., Budnev, N. M., Doroshenko, A. A., Domogatsky, G. V., Dvornický, R., Dyachok, A. N., Dzhilkibaev, Zh.-A. M., Fajt, L., Fialkovsky, S. V., Gafarov, A. R., Golubkov, K. V., Gres, T. I., Honz, Z., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Korobchenko, A. P., Koshechkin, A. P., Kozhin, V. A., Kulepov, V. F., Kuleshov, D. A., Milenin, M. B., Mirgazov, R. A., Osipova, E. R., Panfilov, A. I., Pan’kov, L. V., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rjabov, E. V., Rushay, V. D., Safronov, G. B., Simkovic, F., Skurichin, A. V., Shoibonov, B. A., Solovjev, A. G., Sorokovikov, M. N., Shelepov, M. D., Suvorova, O. V., Shtekl, I., Tabolenko, V. A., Tarashansky, B. A., Yakovlev, S. A., Zagorodnikov, A. V., and Zurbanov, V. L.
Published: 2019
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41. Time calibration of the neutrino telescope Baikal-GVD

Author: Avrorin A.D., Avrorin A.V., Aynutdinov V.M., Bannash R., Belolaptikov I.A., Brudanin V.B., Budnev N.M., Doroshenko A.A., Domogatsky G.V., Dvornický R., Dyachok A.N., Dzhilkibaev Zh.-A.M., Fajt L., Fialkovsky S.V., Gafarov A.R., Golubkov K.V., Gorshkov N.S., Gres T.I., Kebkal K.G., Kebkal O.G., Khramov E.V., Kolbin M.M., Konischev K.V., Korobchenko A.P., Koshechkin A.P., Kozhin V.A., Kruglov M.V., Kryukov M.K., Kulepov V.F., Kuleshov D.A., Milenin M.B., Mirgazov R.A., Nazari V., Panfilov A.I., Petukhov D.P., Pliskovsky E.N., Rozanov M.I., Rjabov E.V., Rushay V. D., Safronov G.B., Shaibonov B.A., Šimkovic F., Shelepov M.D., Shtekl I., Solovjev A.G., Sorokovikov M.N., Suvorova O.V., Tabolenko V.A., Tarashansky B.A., Yakovlev S.A., and Zagorodnikov A.V.
Subjects: Physics, QC1-999
Abstract: Baikal-GVD is a cubic-kilometer scale neutrino telescope, which is currently under construction in Lake Baikal. Baikal-GVD is an array of optical modules arranged in clusters. The first cluster of the array has been deployed and commissioned in April 2015. To date, Baikal-GVD consists of 3 clusters with 864 optical modules. One of the vital conditions for optimal energy, position and direction reconstruction of the detected particles is the time calibration of the detector. In this article, we describe calibration equipment and methods used in Baikal-GVD and demonstrate the accuracy of the calibration procedures.
Published: 2019
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42. Method and device for tests of the laser optical calibration system for the Baikal-GVD underwater neutrino Cherenkov telescope

Author: Kopański, Konrad, primary, Noga, Wojciech, additional, Malecki, Paweł, additional, Allakhverdyan, V. A., additional, Avrorin, A. V., additional, Aynutdinov, V. M., additional, Bannasch, R., additional, Bardačová, Zuzana, additional, Belolaptikov, I. A., additional, Borina, I. V., additional, Brudanin, V., additional, Budnev, N. M., additional, Dik, V. Y., additional, Domogatsky, G. V., additional, Doroshenko, A. A., additional, Dvornický, Rastislav, additional, Dyachok, A. N., additional, Dzhilkibaev, Zh.-A. M., additional, Eckerová, E., additional, Elzhov, T. V., additional, Fajt, L., additional, Fialkovsky, Stanislav Vasilevich, additional, Gafarov, A. R., additional, Golubkov, K. V., additional, Gorshkov, N. S., additional, Gress, T. I., additional, Katulin, M. S., additional, Kebkal, K. G., additional, Kebkal, O. G., additional, Khramov, E. V., additional, Kolbin, M. M., additional, Konischev, K. V., additional, Korobchenko, A. V., additional, Koshechkin, A. P., additional, Kozhin, V. A., additional, Kruglov, M. V., additional, Kryukov, M. K., additional, Kulepov, V. F., additional, Malyshkin, Y. M., additional, Milenin, M. B., additional, Mirgazov, R. R., additional, Naumov, D. V., additional, Nazari, V., additional, Petukhov, D. P., additional, Pliskovsky, E. N., additional, Rozanov, M. I., additional, Rushay, V. D., additional, Ryabov, E. V., additional, Safronov, G. B., additional, Shaybonov, B. A., additional, Shelepov, M. D., additional, Šimkovic, Fedor, additional, Sirenko, A. E., additional, Skurikhin, A. V., additional, Solovjev, A. G., additional, Sorokovikov, M. N., additional, Štekl, Ivan, additional, Stromakov, A. P., additional, Sushenok, E. O., additional, Suvorova, O. V., additional, Tabolenko, V. A., additional, Tarashansky, B., additional, Yablokova, Y. V., additional, Yakovlev, S., additional, and Zaborov, D. N., additional
Published: 2022
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43. Neutrino Telescope in Lake Baikal: Present and Nearest Future

Author: Belolaptikov, Igor, primary, Allakhverdyan, V. A., additional, Avrorin, А. D., additional, Avrorin, A. V., additional, Aynutdinov, V. M., additional, Bannasch, R., additional, Bardаčová, Z., additional, Belolaptikov, I. A., additional, Borina, I. V., additional, Brudanin, V., additional, Budnev, N. M., additional, Dik, V. Y., additional, Domogatsky, G. V., additional, Doroshenko, A. A., additional, Dvornický, Rastislav, additional, Dyachok, A. N., additional, Dzhilkibaev, Zh.-A. M., additional, Eckerová, E., additional, Elzhov, T. V., additional, Fajt, L., additional, Fialkovsky, Stanislav Vasilevich, additional, Gafarov, A. R., additional, Golubkov, K. V., additional, Gorshkov, N. S., additional, Gress, T. I., additional, Katulin, M. S., additional, Kebkal, K. G., additional, Kebkal, O. G., additional, Khramov, E. V., additional, Kolbin, M. M., additional, Konischev, K. V., additional, Kopański, K. A., additional, Korobchenko, A. V., additional, Koshechkin, A. P., additional, Kozhin, V. A., additional, Kruglov, M. V., additional, Kryukov, M. K., additional, Kulepov, V. F., additional, Malecki, Pa., additional, Malyshkin, Y. M., additional, Milenin, M. B., additional, Mirgazov, R. R., additional, Naumov, D. V., additional, Nazari, V., additional, Noga, W., additional, Petukhov, D. P., additional, Pliskovsky, E. N., additional, Rozanov, M. I., additional, Rushay, V. D., additional, Ryabov, E. V., additional, Safronov, G. B., additional, Shaybonov, B. A., additional, Shelepov, M. D., additional, Šimkovic, Fedor, additional, Sirenko, A. E., additional, Skurikhin, A. V., additional, Solovjev, A. G., additional, Sorokovikov, M. N., additional, Štekl, Ivan, additional, Stromakov, A. P., additional, Sushenok, E. O., additional, Suvorova, O. V., additional, Tabolenko, V. A., additional, Tarashansky, B., additional, Yablokova, Y. V., additional, Yakovlev, S., additional, and Zaborov, D. N., additional
Published: 2021
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44. Methods for the suppression of background cascades produced along atmospheric muon tracks in the Baikal-GVD

Author: Bardačová, Zuzana, primary, Allakhverdyan, V. A., additional, Avrorin, A.D., additional, Avrorin, A. V., additional, Aynutdinov, V. M., additional, Bannasch, R., additional, Belolaptikov, I. A., additional, Borina, I. V., additional, Brudanin, V., additional, Budnev, N. M., additional, Dik, V. Y., additional, Domogatsky, G. V., additional, Doroshenko, A. A., additional, Dvornicky, Rastislav, additional, Dyachok, A. N., additional, Dzhilkibaev, Z. A. M., additional, Eckerová, Eliška, additional, Elzhov, T. V., additional, Fajt, L., additional, Fialkovsky, Stanislav Vasilevich, additional, Gafarov, A. R., additional, Golubkov, K. V., additional, Gorshkov, N. S., additional, Gress, T. I., additional, Katulin, M. S., additional, Kebkal, K. G., additional, Kebkal, O. G., additional, Khramov, E. V., additional, Kolbin, M. M., additional, Konischev, K. V., additional, Kopański, K. A., additional, Korobchenko, A. V., additional, Koshechkin, A. P., additional, Kozhin, V. A., additional, Kruglov, M. V., additional, Kryukov, M. K., additional, Kulepov, V. F., additional, Malecki, P., additional, Malyshkin, Y. M., additional, Milenin, M. B., additional, Mirgazov, R. R., additional, Naumov, D. V., additional, Nazari, V., additional, Noga, W., additional, Petukhov, D. P., additional, Pliskovsky, E. N., additional, Rozanov, M. I., additional, Rushay, V. D., additional, Ryabov, E. V., additional, Safronov, G. B., additional, Shaybonov, B. A., additional, Shelepov, M. D., additional, Šimkovic, Fedor, additional, Sirenko, A. E., additional, Skurikhin, A. V., additional, Solovjev, A. G., additional, Sorokovikov, M. N., additional, Štekl, Ivan, additional, Stromakov, A. P., additional, Sushenok, E. O., additional, Suvorova, O. V., additional, Tabolenko, V. A., additional, Tarashansky, B., additional, Yablokova, Y. V., additional, Yakovlev, S., additional, and Zaborov, D. N., additional
Published: 2021
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45. Development of the Double Cascade Reconstruction Techniques in the Baikal-GVD Neutrino Telescope

Author: Eckerová, Eliška, primary, Allakhverdyan, V. A., additional, Avrorin, А.D., additional, Avrorin, A. V., additional, Aynutdinov, V. M., additional, Bannasch, R., additional, Bardačová, Zuzana, additional, Belolaptikov, I. A., additional, Borina, I. V., additional, Brudanin, V., additional, Budnev, N. M., additional, Dik, V. Y., additional, Domogatsky, G. V., additional, Doroshenko, A. A., additional, Dvornický, Rastislav, additional, Dyachok, A. N., additional, Dzhilkibaev, Z. A. M., additional, Elzhov, T. V., additional, Fajt, L., additional, Fialkovsky, Stanislav Vasilevich, additional, Gafarov, A. R., additional, Golubkov, K. V., additional, Gorshkov, N. S., additional, Gress, T. I., additional, Katulin, M. S., additional, Kebkal, K. G., additional, Kebkal, O. G., additional, Khramov, E. V., additional, Kolbin, M. M., additional, Konischev, K. V., additional, Kopański, K. A., additional, Korobchenko, A. V., additional, Koshechkin, A. P., additional, Kozhin, V. A., additional, Kruglov, M. V., additional, Kryukov, M. K., additional, Kulepov, V. F., additional, Malecki, P., additional, Malyshkin, Y. M., additional, Milenin, M. B., additional, Mirgazov, R. R., additional, Naumov, D. V., additional, Nazari, V., additional, Noga, W., additional, Petukhov, D. P., additional, Pliskovsky, E. N., additional, Rozanov, M. I., additional, Rushay, V. D., additional, Ryabov, E. V., additional, Safronov, G. B., additional, Shaybonov, B. A., additional, Shelepov, M. D., additional, Šimkovic, Fedor, additional, Sirenko, A. E., additional, Skurikhin, A. V., additional, Solovjev, A. G., additional, Sorokovikov, M. N., additional, Štekl, Ivan, additional, Stromakov, A. P., additional, Sushenok, E. O., additional, Suvorova, O. V., additional, Tabolenko, V. A., additional, Tarashansky, B., additional, Yablokova, Y. V., additional, Yakovlev, S., additional, and Zaborov, D. N., additional
Published: 2021
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46. An efficient hit finding algorithm for Baikal-GVD muon reconstruction

Author: Shaybonov, Bair, primary, Allakhverdyan, V. A., additional, Avrorin, A. V., additional, Aynutdinov, V. M., additional, Bannasch, R., additional, Bardačová, Zuzana, additional, Belolaptikov, I. A., additional, Borina, I. V., additional, Brudanin, V., additional, Budnev, N. M., additional, Dik, V. Y., additional, Domogatsky, G. V., additional, Doroshenko, A. A., additional, Ornicky, R. Dv, additional, Dyachok, A. N., additional, Dzhilkibaev, Zh.-A. M., additional, Eckerova, E., additional, Elzhov, T. V., additional, Fajt, L., additional, Fialkovsky, Stanislav Vasilevich, additional, Gafarov, A. R., additional, Golubkov, K. V., additional, Gorshkov, N. S., additional, Gress, T. I., additional, Katulin, M. S., additional, Kebkal, K. G., additional, Kebkal, O. G., additional, Khramov, E. V., additional, Kolbin, M. M., additional, Konischev, K. V., additional, Kopański, K. A., additional, Korobchenko, A. V., additional, Koshechkin, A. P., additional, Kozhin, V. A., additional, Kruglov, M. V., additional, Kryukov, M. K., additional, Kulepov, V. F., additional, . Malecki, Pa, additional, Malyshkin, Y. M., additional, Milenin, M. B., additional, Mirgazov, R. R., additional, Naumov, D. V., additional, Nazari, V., additional, Noga, W., additional, Petukhov, D. P., additional, Pliskovsky, E. N., additional, Rozanov, M. I., additional, Rushay, V. D., additional, Ryabov, E. V., additional, Safronov, G. B., additional, Shelepov, M. D., additional, Šimkovic, Fedor, additional, Sirenko, A. E., additional, Skurikhin, A. V., additional, Solovjev, A. G., additional, Sorokovikov, M. N., additional, Štekl, Ivan, additional, Stromakov, A. P., additional, Sushenok, E. O., additional, Suvorova, O. V., additional, Tabolenko, V. A., additional, Tarashansky, B., additional, Yablokova, Y. V., additional, Yakovlev, S., additional, and Zaborov, D. N., additional
Published: 2021
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47. Automatic data processing for Baikal-GVD neutrino observatory

Author: Shaybonov, Bair, primary, Bannasch, R., additional, Dvornicky, Rastislav, additional, Fajt, L., additional, Malecki, Pa., additional, Nazari, V., additional, Noga, W., additional, Šimkovic, Fedor, additional, Štekl, Ivan, additional, Allakhverdyan, V. A., additional, Avrorin, A. V., additional, Aynutdinov, V. M., additional, Bardačová, Zuzana, additional, Belolaptikov, I. A., additional, Borina, I. V., additional, Brudanin, V., additional, Budnev, N. M., additional, Dik, V. Y., additional, Domogatsky, G. V., additional, Doroshenko, A. A., additional, Ornicky, R. Dv, additional, Dyachok, A. N., additional, Dzhilkibaev, Zh.-A. M., additional, Eckerová, Eliška, additional, Elzhov, T. V., additional, Fialkovsky, Stanislav Vasilevich, additional, Gafarov, A. R., additional, Golubkov, K. V., additional, Gorshkov, N. S., additional, Gress, T. I., additional, Katulin, M. S., additional, Kebkal, K. G., additional, Kebkal, O. G., additional, Khramov, E. V., additional, Kolbin, M. M., additional, Konischev, K. V., additional, Kopański, K. A., additional, Korobchenko, A. V., additional, Koshechkin, A. P., additional, Kozhin, V. A., additional, Kruglov, M. V., additional, Kryukov, M. K., additional, Kulepov, V. F., additional, . Malecki, Pa, additional, Malyshkin, Y. M., additional, Milenin, M. B., additional, Mirgazov, R. R., additional, Naumov, D. V., additional, Petukhov, D. P., additional, Pliskovsky, E. N., additional, Rozanov, M. I., additional, Rushay, V. D., additional, Ryabov, E. V., additional, Safronov, G. B., additional, Shelepov, M. D., additional, Sirenko, A. E., additional, Skurikhin, A. V., additional, Solovjev, A. G., additional, Sorokovikov, M. N., additional, Stromakov, A. P., additional, Sushenok, E. O., additional, Suvorova, O. V., additional, Tabolenko, V. A., additional, Tarashansky, B., additional, Yablokova, Y. V., additional, Yakovlev, S., additional, and Zaborov, D. N., additional
Published: 2021
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48. Data Quality Monitoring system of the Baikal-GVD experiment

Author: Sorokovikov, Maksim, primary, Allakhverdyan, V. A., additional, Avrorin, A. V., additional, Aynutdinov, V. M., additional, Bannasch, R., additional, Bardačová, Zuzana, additional, Belolaptikov, I. A., additional, Borina, I. V., additional, Brudanin, V., additional, Budnev, N. M., additional, Dik, V. Y., additional, Domogatsky, G. V., additional, Doroshenko, A. A., additional, Dvornický, Rastislav, additional, Dyachok, A. N., additional, Dzhilkibaev, Zh.-A. M., additional, Eckerová, E., additional, Elzhov, T. V., additional, Fajt, L., additional, Fialkovsky, Stanislav Vasilevich, additional, Gafarov, A. R., additional, Golubkov, K. V., additional, Gorshkov, N. S., additional, Gress, T. I., additional, Katulin, M. S., additional, Kebkal, K. G., additional, Kebkal, O. G., additional, Khramov, E. V., additional, Kolbin, M. M., additional, Konischev, K. V., additional, Kopański, K. A., additional, Korobchenko, A. V., additional, Koshechkin, A. P., additional, Kozhin, V. A., additional, Kruglov, M. V., additional, Kryukov, M. K., additional, Kulepov, V. F., additional, Malecki, P., additional, Malyshkin, Y. M., additional, Milenin, M. B., additional, Mirgazov, R. R., additional, Naumov, D. V., additional, Nazari, V., additional, Noga, W., additional, Petukhov, D. P., additional, Pliskovsky, E. N., additional, Rozanov, M. I., additional, Rushay, V. D., additional, Ryabov, E. V., additional, Safronov, G. B., additional, Shaybonov, B. A., additional, Shelepov, M. D., additional, Šimkovic, Fedor, additional, Sirenko, A. E., additional, Skurikhin, A. V., additional, Solovjev, A. G., additional, Štekl, Ivan, additional, Stromakov, A. P., additional, Sushenok, E. O., additional, Suvorova, O. V., additional, Tabolenko, V. A., additional, Tarashansky, B., additional, Yablokova, Y. V., additional, Yakovlev, S., additional, and Zaborov, D. N., additional
Published: 2021
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49. The Baikal-GVD neutrino telescope as an instrument for studying Baikal water luminescence

Author: Dvornicky, Rastislav, primary, Allakhverdyan, V. A., additional, Avrorin, A. V., additional, Aynutdinov, V. M., additional, Bannasch, R., additional, Bardačová, Zuzana, additional, Belolaptikov, I. A., additional, Borina, I. V., additional, Brudanin, V., additional, Budnev, N. M., additional, Dik, V. Y., additional, Domogatsky, G. V., additional, Doroshenko, A. A., additional, Dyachok, A. N., additional, Dzhilkibaev, Zh.-A. M., additional, Eckerová, Eliška, additional, Elzhov, T. V., additional, Fajt, L., additional, Fialkovsky, Stanislav Vasilevich, additional, Gafarov, A. R., additional, Golubkov, K. V., additional, Gorshkov, N. S., additional, Gress, T. I., additional, Katulin, M. S., additional, Kebkal, K. G., additional, Kebkal, O. G., additional, Khramov, E. V., additional, Kolbin, M. M., additional, Konischev, K. V., additional, Kopański, K. A., additional, Korobchenko, A. V., additional, Koshechkin, A. P., additional, Kozhin, V. A., additional, Kruglov, M. V., additional, Kryukov, M. K., additional, Kulepov, V. F., additional, Malecki, P., additional, Malyshkin, Y. M., additional, Milenin, M. B., additional, Mirgazov, R. R., additional, Naumov, D. V., additional, Nazari, V., additional, Noga, W., additional, Petukhov, D. P., additional, Pliskovsky, E. N., additional, Rozanov, M. I., additional, Rushay, V. D., additional, Ryabov, E. V., additional, Safronov, G. B., additional, Shaybonov, B. A., additional, Shelepov, M. D., additional, Šimkovic, Fedor, additional, Sirenko, A. E., additional, Skurikhin, A. V., additional, Solovjev, A. G., additional, Sorokovikov, M. N., additional, Štekl, Ivan, additional, Stromakov, A. P., additional, Sushenok, E. O., additional, Suvorova, O. V., additional, Tabolenko, V. A., additional, Tarashansky, B., additional, Yablokova, Y. V., additional, Yakovlev, S., additional, and Zaborov, D. N., additional
Published: 2021
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50. Measuring muon tracks in Baikal-GVD using a fast reconstruction algorithm

Author: GVD Collaboration, Allakhverdyan, V. A., Avrorin, A. D., Avrorin, A. V., Aynutdinov, V. M., Bannasch, R., Barda��ov��, Z., Belolaptikov, I. A., Borina, I. V., Brudanin, V. B., Budnev, N. M., Dik, V. Y., Domogatsky, G. V., Doroshenko, A. A., Dvornick��, R., Dyachok, A. N., Dzhilkibaev, Zh. -A. M., Eckerov��, E., Elzhov, T. V., Fajt, L., Fialkovski, S. V., Gafarov, A. R., Golubkov, K. V., Gorshkov, N. S., Gress, T. I., Katulin, M. S., Kebkal, K. G., Kebkal, O. G., Khramov, E. V., Kolbin, M. M., Konischev, K. V., Kopa��ski, K. A., Korobchenko, A. V., Koshechkin, A. P., Kozhin, V. A., Kruglov, M. V., Kryukov, M. K., Kulepov, V. F., Malecki, Pa., Malyshkin, Y. M., Milenin, M. B., Mirgazov, R. R., Naumov, D. V., Nazari, V., Noga, W., Petukhov, D. P., Pliskovsky, E. N., Rozanov, M. I., Rushay, V. D., Ryabov, E. V., Safronov, G. B., Shaybonov, B. A., Shelepov, M. D., ��imkovic, F., Sirenko, A. E., Skurikhin, A. V., Solovjev, A. G., Sorokovikov, M. N., ��tekl, I., Stromakov, A. P., Sushenok, E. O., Suvorova, O. V., Tabolenko, V. A., Tarashansky, B. A., Yablokova, Y. V., Yakovlev, S. A., and Zaborov, D. N.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, QC770-798, Astrophysics, High Energy Physics - Experiment, QB460-466, High Energy Physics - Experiment (hep-ex), Nuclear and particle physics. Atomic energy. Radioactivity, High Energy Physics::Experiment, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Engineering (miscellaneous), 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 consists of several thousand optical sensors arranged on vertical strings, with 36 sensors per string. The strings are grouped into clusters of 8 strings each. Each cluster can operate as a stand-alone neutrino detector. The detector layout is optimized for the measurement of astrophysical neutrinos with energies of $\sim$ 100 TeV and above. Events resulting from charged current interactions of muon (anti-)neutrinos will have a track-like topology in Baikal-GVD. A fast $\chi^2$-based reconstruction algorithm has been developed to reconstruct such track-like events. The algorithm has been applied to data collected in 2019 from the first five operational clusters of Baikal-GVD, resulting in observations of both downgoing atmospheric muons and upgoing atmospheric neutrinos. This serves as an important milestone towards experimental validation of the Baikal-GVD design. The analysis is limited to single-cluster data, favoring nearly-vertical tracks., Comment: 15 pages, 6 figures, 1 table, to be published in Eur. Phys. J. C
Published: 2021
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