Distribution of Sea Level Muons at Zenith Angles below 10 TeV Energy

The moderate energy primary cosmic ray nucleon spectrum has been constructed fro the direct measurements of Webber et al., Seo et al., Menn et al. along with the other results surveyed by Swordy. The sea leve muon energy spectra at different zenith angles have been derived from the decay of non-prompt mesons by adopting standard diffusion equation of hadronic cascades. The contribution of charmed mesons to muon spectrum has also been accounted following standard procedure. Our estimated tota muon energy spectra have been found comparable with the global spectrograph muon flux results of MARS, DEIS, MSU and other groups.