Relativistic corrections to the dipole polarizability of the ground state of the molecular ion H-2(+) - art. no. 044501

The recently reported precise experimental determination of the dipole pola rizability of the H-2(+) molecular ion ground state [P.L. Jacobson, R.A. Ko mara, W.G. Sturrus, and S.R. Lundeen, Phys. Rev. A 62, 012509 (2000)] revea ls a discrepancy between theory and experiment of about 0.0007a(0)(3), whic h has been attributed to relativistic and QED effects. In the present work we analyze an influence of the relativistic effects on the scalar dipole po larizability of an isolated H-2(+) molecular ion. Our conclusion is that it accounts for only 1/5 of the measured discrepancy.