Total cross section measurements forν μ ,\(\bar \nu _\mu \) charged current interactions in 3–30 GeV energy range with IHEP-JINR neutrino detectorcharged current interactions in 3–30 GeV energy range with IHEP-JINR neutrino detector

The results of total cross section measurements for theν μ ,\(\bar \nu _\mu \) interactions with isoscalartarget in the 3 – 30 GeV energy range have been presented. The data were obtained with the IHEP-JINR Neutrino Detectorin the “natural” neutrino beams of the U-70accelerator. Neutrino fluxes were obtained by averaging the spectra, based on the calculations with the use of the experimental data on secondary particle yields from the target and muonfluxes measurements in 9 gaps of the muonfilter, as well as the spectra determined from quasi-elastic events and spectra defined by extrapolating differential distributiondσ/dy in the regiony=0. The significant deviation from the linear dependence forσ tot versus neutrino energy is determined in the energy range less than 15 GeV.