arXiv subjects

G. Domogatsky

Publications and source records attributed to G. Domogatsky.

4 recordsLinked to original sources

arXiv2009

Acoustic search for high-energy neutrinos in Lake Baikal: status and perspectives

We report theoretical and experimental results of on-going feasibility studies to detect cosmic neutrinos acoustically in Lake Baikal. In order to examine ambient noise conditions and to develop respective pulse detection techniques a prototype device was created. The device is operating at a depth of 150 m at the site of the Baikal Neutrino Telescope and is capable to detect and classify acoustic signals with different shapes, as well as signals from neutrino-induced showers.

astro-ph.HE↗

arXiv2004

Can Radiogenic Heat Sources Inside the Earth be located by their Antineutrino incoming Directions?

Antineutrinos born in the U and Th decay chains inside the Earth (``Geoneutrinos'') carry out information on the amount and distribution of radiogenic heat sources, which is of fundamental importance for geophysics. Models of the Earth distribute U and Th masses mainly between the continental crust and the lower mantle. It has been much discussed recently that a number of detectors stationed at appropriate geographical sites can separate the crust and mantle contributions. In present work we analyze directional separation of antineutrino signals arriving from the crust and the lower mantle with only one detector. We find that with a ~30-kton liquid scintillation antineutrino spectrometer using $\bar{ν_e}+p \to n + e^{+}$ detection reaction and positron and neutron coordinates reconstruction techniques the U and Th distribution model can roughly be tested. We also consider detector calibration using ~1 MCi commercially available Sr90-Y90 beta source which emits antineutrinos (Emax = 2.28 MeV) in the geoneutrino energy range.

hep-ph↗

arXiv2004

Neutrino Geophysics at Baksan (Part II): Possible Studies of Antineutrino- and Radiogenic Heat Sources in Earth Interior

Antineutrinos born inside the Earth (``geoneutrinos'') carry out information of fundamental importance for understanding of the origin and evolution of our planet. We show that Baksan Neutrino Observatory is one of the best sites for detection and analysis of geoneutrinos using large liquid scintillation spectrometer. Also we present a short story of concept of Earth as antineutrino source (1960 - 2004 yy)

hep-ph↗

arXiv2001

BAIKAL experiment: status report

We review the present status of the Baikal Neutrino Project and present the results obtained with the deep underwater neutrino telescope NT-200.

astro-ph↗