Backward elastic ${p-}^3\mathrm{He}$ scattering and high momentum components of the ${}^3\mathrm{He}$ wave function

It is shown that because of a dominance of $\mathrm{np}$-pair transfer mechanisms of backward elastic ${p-}^3\mathrm{He}$ scattering for incident proton kinetic energies $T_p>1\mathrm{}\mathrm{GeV}$ the cross section of this process is defined mainly by the values of the Faddeev component of the wave function of the ${}^3\mathrm{He}$ nucleus, ${\phi }^{23}({\mathbf{q}}_{23},{\mathbf{p}}_1),$ at high relative momenta $q_{23}>0.6\mathrm{}\mathrm{GeV}/c$ of the $\mathrm{NN}$ pair in the ${}^1{S}_0$ state and at low spectator momenta $p_1\sim 0-0.2\mathrm{GeV}/c.\mathrm{}$