Angular distribution of extensive air showers by TEL array under GELATICA experiment

Georgian Electronoc Scientific Jourmals (GESJ): Physics (2016) No.1(15) - 2740 pp.54-62 ISSN 1512-1461 ; http://gesj.internet-academy.org.ge/download.php?id=2740.pdf Extensive Air Showers (EAS) arrival direction distribution is studied by means of a 4-detector installation in Telavi (TEL array), which is a node of GELATICA net in Georgia. The description of EAS arrival zenith angle distribution within the spheric layer model of the atmosphere and exponential absorption of showers with the air path is used. It is shown that the variation of zenith angles upper cutoff boundary allows a stable estimation of showers absorption path.