The authors have calculated the electric dipole interaction energy of the ${}_{}{}^{205}{}_{}{}^{}\mathrm{TI}$ nucleus in TIF assuming a nonzero electric dipole moment $d_p$ on the proton. The result is used in the accompanying experimental paper to obtain a new value of $(-1.4\mathrm{}\pm 6)\times {10}^{-21\mathrm{}}e$ cm for $d_p$.

• Received 29 March 1979

DOI:https://doi.org/10.1103/PhysRevA.21.471