ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

Selection techniques of neutrino-induced cascades in the Baikal-GVD neutrino telescope

NázevTitle
Selection techniques of neutrino-induced cascades in the Baikal-GVD neutrino telescopeSelection techniques of neutrino-induced cascades in the Baikal-GVD neutrino telescope
Druh výsledkuResult type
Příspěvek ve sborníkuProceedings paper
AutořiAuthors
V.A. Allakhverdyan, A.D. Avrorin, A.V. Avrorin, V.M. Aynutdinov, L. Fajt, F. Šimkovic, I. Štekl
Klíčová slovaKeywords
cosmic ray, ays, Cosmology, Energy dissipation, Lakes, neutron, Stochastic systems, telescope
KonferenceConference
27th European Cosmic Ray Symposium (Nijmegen, Netherlands, 2022-07-25)
ExperimentCollaboration
Baikal-GVD
DOIDOI
10.22323/1.423.0098
Časopis / citaceJournal / citation
In: Proceedings of 27th European Cosmic Ray Symposium — PoS(ECRS), Sissa Medialab, 2023, pp. 098 · ISSN 1824-8039
RokYear
2023
JazykLanguage
eng
ZáznamyRecords
ProjektProject
Inženýrské aplikace fyziky mikrosvětaEngineering applications of microworld physics; Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
CitovánoCited by
3 (INSPIRE-HEP)
2023: 12024: 12025: 1
Plný text (open access)Full text (open access)
https://pos.sissa.it/423/098/pdf
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

The neutrino telescope Baikal-GVD (Gigaton Volume Detector) has been designed to search for high-energy neutrino cosmic sources. It is located in pure water of Lake Baikal at a depth of 1366 m. Currently (year 2022) Baikal-GVD comprises 2880 optical modules divided to 10 independently operating clusters. Optical modules detect flashes of Cherenkov light from secondary charged particles induced in interactions of neutrinos with matter. Some charged and neutral current neutrino interactions lead to hadronic or electromagnetic cascade events. Apart from the neutrino cascades, the cascade-like light topologies can be also induced along the muon tracks. These event signatures, referred to as background cascades arise from the discrete stochastic energy losses of the muon. The cascades produced along the atmospheric muon bundles constitute the main background in neutrino cascade channel. In this paper, a developed, optimized, and tested algorithm for suppression of the background cascades is presented.

The neutrino telescope Baikal-GVD (Gigaton Volume Detector) has been designed to search for high-energy neutrino cosmic sources. It is located in pure water of Lake Baikal at a depth of 1366 m. Currently (year 2022) Baikal-GVD comprises 2880 optical modules divided to 10 independently operating clusters. Optical modules detect flashes of Cherenkov light from secondary charged particles induced in interactions of neutrinos with matter. Some charged and neutral current neutrino interactions lead to hadronic or electromagnetic cascade events. Apart from the neutrino cascades, the cascade-like light topologies can be also induced along the muon tracks. These event signatures, referred to as background cascades arise from the discrete stochastic energy losses of the muon. The cascades produced along the atmospheric muon bundles constitute the main background in neutrino cascade channel. In this paper, a developed, optimized, and tested algorithm for suppression of the background cascades is presented.

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