The optical module of Baikal-GVD

Avrorin, А.D.; Avrorin, A.V.; Aynutdinov, V. M.; Баннаш, Р.; Белолаптиков, И. А.; Bogorodsky, D.Yu.; Brudanin, V.; Буднев, Н. М.; Гафаров, А. Р.; Гапоненко, O. Н.; Golubkov, K.V.; Гресс, Т.; Danilchenko, I. A.; Dzhilkibaev, Zh.-A.M.; Domogatsky, G. V.; Дорошенко, А. А.; Dyachok, A. N.; Жуков, В.; Загородников, А.; Зурбанов, В. Л.; Кебкал, К.Г.; Kebkal, O.G.; Kozhin, A.V.; Konischev, K. V.; Коробченко, А. В.; Koshel, F.K.; Кошечкин, А. П.; Kulepov, V.F.; Kuleshov, D.; Ljashuk, V.I.; Milenin, M.B.; Mirgazov, R.; Osipova, E.R.; Панфилов, А. И.; Pankov, L.; Pliskovsky, E. N.; Rozanov, M.I.; Rjabov, E.V.; Skurihin, Aleksandr Vasilevich; Smagina, A.A.; Suvorova, O. V.; Таболенко, В. А.; Tarashansky, B.; Fialkovsky, S.V.; Honz, Z.; Shaybonov, B. A.; Sheifler, A.; Shelepov, M.D.; Yakovlev, S. A.

doi:10.1134/s1547477116060029

Cited by 9 publications

(5 citation statements)

References 15 publications

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“…The distance between the strings in a cluster is 60 m, where one string is in the center and seven are arranged in a circle around it. The distance between the clusters is 300 m. The OM [624] is a borosilicate glass sphere 42 cm in diameter that houses a PMT of 25.5 cm in diameter. The electronics of the OM are mounted directly on the base of the PMT and include a LED calibration system.…”

Section: Baikal-gvdmentioning

confidence: 99%

High-Energy and Ultra-High-Energy Neutrinos

Ackermann,

Agarwalla,

Alvarez-Muñiz

et al. 2022

Preprint

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Astrophysical neutrinos are excellent probes of astroparticle physics and high-energy physics. With energies far beyond solar, supernovae, atmospheric, and accelerator neutrinos, high-energy and ultrahigh-energy neutrinos probe fundamental physics from the TeV scale to the EeV scale and beyond. They are sensitive to physics both within and beyond the Standard Model through their production mechanisms and in their propagation over cosmological distances. They carry unique information about their extreme non-thermal sources by giving insight into regions that are opaque to electromagnetic radiation. This white paper describes the opportunities astrophysical neutrino observations offer for astrophysics and high-energy physics, today and in coming years.Fully opening the HE and UHE neutrino windows requires a multi-pronged approach that explores a broad range of proposed experimental techniques. With upcoming neutrino telescopes, the goal is to improve the sensitivity ten-fold in the HE range and hundred-fold in the UHE range. In the HE range, we are moving into the high-statistics era, where subtle features may be resolved and multiple sources may be discovered. In the UHE range, neutrino flux predictions and physics tests are well-motivated, but we will likely need new techniques to enable discoveries. The ongoing efforts to develop new instruments will improve sensitivity, increase statistics, and expand the energy range. A broad range of experimental approaches, with complementary capabilities, must be developed and tested in the coming decades. Because it is not clear which techniques will prevail, we advocate for a broad portfolio of experiments in the HE and UHE neutrino sector. Owing to their potential, HE and UHE neutrinos should be at the forefront of the high-energy physics program, as they push the boundaries for the neutrino, cosmic, energy, theory, and instrumentation frontiers. 4 Experimental landscape 32 4.1 Overview 32 4.2 High-energy range 35 4.3 Ultra-High Energy Range (> 100-PeV) 45

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Section: Baikal-gvdmentioning

confidence: 99%

High-Energy and Ultra-High-Energy Neutrinos

Ackermann,

Agarwalla,

Alvarez-Muñiz

et al. 2022

Preprint

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“…So far, these parameters compose a multi-dimensional array of the Cherenkov cascade photon field for reconstruction of events. Optical properties of the Baikal water at different depths are accounted (PoS(ICRC2023)977), as well as the OM angular acceptance [15]. The shower coordinates are estimated by means of a χ 2 fit over the temporal information of the telescope's triggered channels.…”

Section: Pos(icrc2023)1457mentioning

confidence: 99%

Baikal-GVD astrophysical neutrino candidate near the TXS0506+056 blazar.

Dik¹

2023

Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023)

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We report on the observation of a rare neutrino event detected by Baikal-GVD in April 2021. The event GVD210418CA is the highest-energy cascade observed by Baikal-GVD so far from the direction below the horizon. The estimated cascade energy is 224 ± 75 TeV. The evaluated signalness parameter of GVD210418CA is 97.1% using an assumption of the E −2.46 spectrum of astrophysical neutrinos. The arrival direction of GVD210418CA is near the position of the well-known radio blazar TXS 0506+056, with the angular distance being within a 90% directional uncertainty region of the Baikal-GVD measurement. The event was followed by a radio flare observed by the RATAN-600 radio telescope, further strengthening the case for the neutrinoblazar association.

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“…The distance between the strings in a cluster is 60 m, where one string is in the center and seven are arranged in a circle around it. The distance between the clusters is 300 m. The OM [667] is a borosilicate glass sphere 42 cm in diameter that houses a PMT of 25.5 cm in diameter. The electronics of the OM are mounted directly on the base of the PMT and include a LED calibration system.…”

Section: Baikal-gvdmentioning

confidence: 99%