Ústav technické a experimentální fyziky Institute of Experimental and Applied Physics

The status and astrophysics results of the Baikal-GVD neutrino telescope

NázevTitle
The status and astrophysics results of the Baikal-GVD neutrino telescopeThe status and astrophysics results of the Baikal-GVD neutrino telescope
Druh výsledkuResult type
Příspěvek ve sborníkuProceedings paper
AutořiAuthors
V.Ya. Dik, O.V. Suvorova, V.A. Allakhverdyan, A.D. Avrorin, Z. Beňušová, R. Dvornický, E. Eckerová, F. Šimkovic, I. Štekl
DOIDOI
10.22323/1.501.1161
Časopis / citaceJournal / citation
In: 39th International Cosmic Ray Conference (ICRC2025). Trieste: PoS - Proceedings of Science, Sissa Medialab srl, 2025. p. 1-10. vol. 501. ISSN 1824-8039.
JazykLanguage
eng
ScopusScopus
2-s2.0-105029056947
RIVRIV
RIV/68407700:21670/25:00389288!RIV26-MSM-21670___
ProjektProject
LSM-CZ III - Podzemní laboratoř LSM - účast České republiky - LM2023063 (2023–2026)LSM-CZ III - Podzemní laboratoř LSM - účast České republiky - LM2023063 (2023–2026); Laboratoire Souterrain de Modane - účast ČRLaboratoire Souterrain de Modane – participation of the Czech Republic

AbstraktAbstract

The Baikal-GVD neutrino telescope is a cubic-kilometer scale neutrino detector being constructed in Lake Baikal. Presently the detector array consists of 14 sub-arrays (clusters), including in total 117 strings holding 4212 optical modules. The telescope’s sensitive volume for high-energy cascade detection has reached 0.7 km3. In this report we discuss status of the detector and present first physics results obtained using the data collected in 2018 – 2024. This includes a diffuse astrophysical neutrino flux measurement using cascade-like events, with a statistical significance exceeding 5σ, and first hints on the diffuse astrophysical flux in track-like events. We also discuss Baikal-GVD results on the Galactic neutrino flux, as well as searches for point-like neutrino sources.

The Baikal-GVD neutrino telescope is a cubic-kilometer scale neutrino detector being constructed in Lake Baikal. Presently the detector array consists of 14 sub-arrays (clusters), including in total 117 strings holding 4212 optical modules. The telescope’s sensitive volume for high-energy cascade detection has reached 0.7 km3. In this report we discuss status of the detector and present first physics results obtained using the data collected in 2018 – 2024. This includes a diffuse astrophysical neutrino flux measurement using cascade-like events, with a statistical significance exceeding 5σ, and first hints on the diffuse astrophysical flux in track-like events. We also discuss Baikal-GVD results on the Galactic neutrino flux, as well as searches for point-like neutrino sources.