Measuring the distributions of atmospheric muons at sea level

The primary cosmic rays consisting of protons, alpha particles and heavy nuclei interact with the air molecules upon entering the atmosphere. The most abundant particles produced are pions which decay to muons and muon neutrinos which bombard the Earth surface. For a given particle, propagating in the atmosphere, the probabilities of decay and interaction become a function of energy, altitude and zenith angle. A fair knowledge of the atmospheric muon distributions at Earth is a prerequisite for the simulations of cosmic ray setups and rare event search detectors. The goal of this work is to develop a compact setup for the measurements of energy and zenith angular distribution of muons. We also report the vertical flux of muons at sea level