Search for very high-energy neutrinos by SHALON (Cherenkov radiation of extensive air showers observed at large zenith angles)

• Published in: Nuclear physics. Section B, Proceedings supplement Proceedings supplement, 2006, Vol.151 (1), p.493-496
• Main Authors: Sinitsyna, V.G., Arsov, T.P., Borisov, S.S., Musin, F.I., Nikolsky, S.I., Malyshko, A.A., Sinitsyna, V.Y., Platonov, G.F.
• Format: Article
• Language: English
• ISSN: 0920-5632; 1873-3832
• DOI: 10.1016/j.nuclphysbps.2005.07.087

The detection of extraterrestrial very high energy neutrinos by the atmospheric Cherenkov telescopic system SHALON is discussed. The analysis of results of observation of extensive air showers at 3338 m above sea level by means of the gamma-telescope SHALON at zenith angles 72°, 76°, 84°, 96° are presented. The observed results are compared with the data of of shower according to zenith angle. The observation has been carried out at Tien-Shan station with SHALON gamma-telescope. The SHALON telescopic system has mirror with area of 11.2 m 2 and 144 PMT matrix with 0.2° angular resolution, and has the largest angular acceptance in the world - > 8°. It allows to continuously control the background of cosmic ray particle emission and the atmospheric transparency with observation thus increasing observation efficiency. It is the telescope characteristics that permit to start searching for local neutrino sources with energy 10 13 − 10 15  eV on EAS generated in mountain-range located at some 5 and more kilometers from the gamma-telescope (in Russian the SHALON abbreviation means - the Extensive Air Showers from Neutrino).