Abstract:
On the basis of experimental data «Pamir» in the field of ultrahigh-energy $\mathrm{E}_{\text{est}} = 10^{16}{-}10^{17}$ eV, experiment and model MS0 considered parameters $\alpha$-azimuthal anisotropy of the angular distributions of the secondary particles, and depending on the space-energy characteristics $ER$ initial gamma-families formed during the interaction of protons and alpha-particles of the primary cosmic rays (PCR) with air nuclei. In the experiment, an excess $\Delta^{\text{eksp}} = 0.10 \pm 0.02$ anisotropic initial $\gamma$-families with $\alpha_{\text{in}} > 0.2$ relative to the model. Mean value $\overline{a}_{\text{in}}$ in the experiment appeared in the 1.6 times higher than in the model. In the region of small values of $\overline{ER}_{\text{in}} <500$ TeV$\cdot$mm setting is consistent $\overline{a}_{\text{in}}$ among themselves, experiment and model and make small value $\overline{a}\sim 0.10$, and in the large $\overline{ER}_{\text{in}} > 500$ TeV$\cdot$mm observed a sharp increase in the experimental value of the parameter $\overline{a}_{\text{in}}^{\text{exsp}}$ with the increase $\overline{ER}_{\text{in}}$ in performance. The values $\overline{a}_{\text{in}}^{\text{мсо}}$ of one discussed above models remain essentially unchanged with the increase $\overline{ER}_{\text{in}}$.