Do positrons have electric dipole moments?

Question

Is there experimental evidence checking to see if the positron has an electric dipole moment at rest? Or has an experiment measured it’s magnetic dipole moment at rest?

Answer 1

The electron's magnetic dipole moment has been measured extremely accurately, as desribed here.

Attempts to detect an electric dipole moment of an electron have all failed, indicating that if electrons do have an electric dipole moment it must be extremely small.

The positron, according to all theory and experimental results to date, is just the same as an electron except that its charge is positive instead of negative. So it is pretty safe to assume that a positron's magnetic dipole moment is identical to that of an electron, and that its electric dipole moment is zero or extremely small.