Wave functions calculated with separable potentials in standard nonrelativistic and covariant Faddeev equations were used to estimate relativistic corrections of the overall muon-capture rate in ${}_{}{}^3{}_{}{}^{}\mathrm{He}$. They seem to cancel other relativistic corrections obtained from considering small Dirac wave function components in the effective Hamiltonian for the weak interaction.

NUCLEAR REACTIONS $\mu$ capture in ${}_{}{}^3{}_{}{}^{}\mathrm{He}$; Primakoff equation; relativistic corrections from nuclear wave functions.

• Received 19 November 1979

DOI:https://doi.org/10.1103/PhysRevC.22.2258