Cosmic-ray composition with TACTIC telescope using Fractal and Wavelet Analysis

TL;DR

This paper presents a method using fractal and wavelet analysis of atmospheric Cherenkov light to estimate cosmic-ray composition, achieving high segregation of primary masses and consistent flux estimates with experimental data.

Contribution

It introduces a novel wavelet parameter for cosmic-ray primary mass segregation using TACTIC telescope data, enhancing composition analysis accuracy.

Findings

Wavelet dimension B6 segregates ~90% of events by primary mass.

Flux estimates align well with experimental measurements.

Method improves cosmic-ray composition analysis above 5 TeV.

Abstract

A preliminary flux estimate of various cosmic-ray constituents based on the atmospheric Cerenkov light flux of extensive air showers using fractal and wavelet analysis approach is proposed. Using a Monte-Carlo simulated database of Cerenkov images recorded by the TACTIC telescope, we show that one of the wavelet parameters (wavelet dimension B6) provides ? 90% segregation of the simulated events in terms of the primary mass. We use these results to get a preliminary estimate of primary flux for various cosmic-ray primaries above 5 TeV energy. The simulation based flux estimates of the primary mass as recorded by the TACTIC telescope are in good agreement with the experimentally determined values.