Calculation of differential temperature coefficients for muons at different zenith angles

Influence of atmospheric temperature on muon flux at sea level is considered. Results of calculations of the differential temperature coefficients (DTC) for muons at different zenith angles and threshold energies are presented. These calculations are based on the solution of diffusion equations for mesons and muons in atmosphere. In calculations, a six-layer stationary spherical model of atmosphere was used, contributions of both pions and kaons were taken into account. Also for muons, relation between energy loss and muon energy and density of air was taken into account. Comparison of results of DTC calculations with results of earlier works shows only qualitative agreement; possible sources of the differences are discussed. (authors)