The search for different neutrino flavors from collapsing stars using the LVD detector

The main goal of the Large Volume Detector (LVD) is to search for neutrino burst from gravitational stellar collapses in our Galaxy. The apparatus is shown to be able to register stellar collapse even if there is none of the antineutrino emission specific to the standard scenario. The data from more...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2011-03, Vol.75 (3), p.416-418
Main Authors: Agafonova, N. Yu, Boyarkin, V. V., Dadykin, V. L., Dobrynina, E. A., Enikeev, R. I., Zatsepin, G. T., Malgin, A. S., Ryazhskaya, O. G., Ryasny, V. G., Shakiryanova, I. R., Yakushev, V. F.
Format: Article
Language:English
Subjects:
Bursts
Emission
Flavor (particle physics)
Galaxies
Gravitation
Gravitational collapse
Hadrons
Heavy Ions
Milky Way Galaxy
Nuclear Physics
Physics
Physics and Astronomy
Sensors
Stars
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Summary:The main goal of the Large Volume Detector (LVD) is to search for neutrino burst from gravitational stellar collapses in our Galaxy. The apparatus is shown to be able to register stellar collapse even if there is none of the antineutrino emission specific to the standard scenario. The data from more than nine years of detector operation have been processed, and no candidate events for neutrino bursts have been detected. This implies the existence of an experimental limit to the galactic stellar collapse rate in those cases where collapse is not accompanied by electron antineutrino emission: less than one event per 4.1 yr at the 90% confidence level.
ISSN:1062-8738
1934-9432
DOI:10.3103/S106287381103004X