Quadrupole and octupole parameters of Jupiter's main magnetic field

Description of the Nuclear Octupole and Quadrupole Deformation

A parametrization of octupole plus quadrupole deformation, in terms of intrinsic variables defined in the rest frame of the overall tensor of inertia, is presented and discussed. The model is valid for situations close to the axial symmetry, but non axial deformation parameters are not frozen to zero. The properties of the octupole excitations in the deformed Thorium isotopes Th, Th are interpr...

Mean field study of the quadrupole-octupole degree of freedom in the spdf boson model

We present a mean field study of the quadrupole-octupole degree of freedom in collective nuclei within the framework of the spd f -boson model. For realistic choices of the Hamiltonian parameters, the ground state of the system is shown to remain axially symmetric, which considerably simplifies the mean field treatment. The critical point for the onset of octupole deformation in quadrupole defo...

Quadrupole and octupole radiation from 16O near 39 MeV excitation.

Magnetic Dipole, Electric Quadrupole and Magnetic Octupole Moments of the ∆ Baryons in Light Cone QCD Sum Rules

Due to the very short life time of the ∆ baryons, a direct measurement on the electromagnetic moments of these systems is almost impossible in the experiment and can only be done indirectly. Although only for the magnetic dipole moment of ∆++ system there is some experimental data, the theoretical, phenomenological and lattice calculations could play crucial role. In present work, by calculatin...

Tuning fifth-order aberrations in a quadrupole-octupole corrector.

The resolution of conventional electron microscopes is usually limited by spherical aberration. Microscopes equipped with aberration correctors are then primarily limited by higher order, chromatic, and misalignment aberrations. In particular the Nion third-order aberration correctors installed on machines with a low energy spread and possessing sophisticated alignment software were limited by ...