The molecular beam electric resonance technique has been used to examine the hyperfine spectrum of CsF to determine the nuclear quadrupole interaction of the cesium nucleus. A total of 95 transitions in vibrational states v5025 and rotational states J5128 have been included in a fit to determine the cesium nuclear quadrupole and spin–rotation interactions, the fluorine spin–rotation interaction...

The answer must be that the radiation is canceled by destructive interference between the radiation fields of the large number N of electrons that make up the steady current. A single electron in uniform circular motion emits electric dipole radiation, whose power is proportional to the square of the acceleration a = v/r, and hence to (v/c). But, the electric dipole moment vanishes for two elec...

We calculate the Zeeman frequency shifts due to interactions with the light in a far-off-resonance optical dipole trap. These shifts are important for potential use of such a trap to search for an atomic permanent electric-dipole moment ~EDM!. We present numerical results for Cs and Hg, as examples of paramagnetic and diamagnetic atoms. The vector and tensor light shifts are calculated for a la...

Currently there are no UXO discrimination techniques based on total-field magnetic sensor data that rely on multipole expansion parameters of higher order than the dipole. In some cases, however, it can be advantages to describe a UXO target with both dipole and quadrupole parameters. In this paper, we examine the properties of the quadrupole moment and illustrate them using a synthetic example...

Potential energy, electric field gradient (EFG) at both nuclei, and electric dipole moment functions for the electronic ground states of NOþ, NO and NO were calculated at the internally contracted multireference configuration interaction (icMRCI) level using augmented correlation-consistent basis sets. The changes in the EFG’s with internuclear separation R were used to interpret the character ...

Abstract. In this chapter we first calculate the post–Newtonian gravito-electric secular rate of the mean anomaly of a test particle freely orbiting a spherically symmetric central mass. Then, we propose a novel approach to suitably combine the presently available planetary ranging data to Mercury, Venus and Mars in order to determine, simultaneously and independently of each other, the Sun’s q...

Atomic quadrupole moments and hyperfine constants of the metastable D3/2,5/2 states of Ca +, Sr+, Ba+, Yb+, and Hg+ are calculated by the multiconfiguration Dirac-Hartree-Fock and relativistic configuration-interaction methods. For Hg+, the configuration is 5d96s2. For the other ions, the configuration consists of a single d-electron outside a set of closed shells. Current interest in the quadr...