Quadrupole Moment of the Deuteron

Abstract
The electric field gradient in the HD and D2 molecules has been calculated from 87-term wave functions of the James and Coolidge type. With the use of experimental values of the quadrupole interaction constant, the electric quadrupole moment of the deuteron is found to be 0.2875 F2 which is 2% larger than the most recent values. The estimated error is 0.002 F2.