Distribution of magnetic dipole strength — binning

Magnetic Field Strength Distribution in InterplanetaryTurbulenceT

The distribution of magnetic eld magnitudes is derived for the special case of a constant mean eld and uncorrelated components having Gaussian distributions. Of the three cases considered{ isotropic, transverse, and axisymmetric, the latter most closely resembles a lognormal distribution, when the parallel variance is less than the perpendicular variance. Thus, a normally distributed, non-inter...

Transition dipole strength of eumelanin.

We report the transition dipole strength of eumelanin (the principal human photoprotective pigment) in the ultraviolet and visible. We have used both theoretical (density functional) and experimental methods to show that eumelanin is not an unusually strong absorber amongst organic chromophores. This is somewhat surprising given its role as a photoprotectant, and suggests that the dark coloring...

Dipole - Dipole Interactions of Charged - Magnetic Grains

Dipole strength measurements in the 132Sn region

Properties of the Giant Dipole Resonance in nuclei far off stability provide information on the isospin dependence of the effective nuclear interaction [1]. Moreover, recent RPA calculations of the dipole strenght in n-rich nuclei predict the existence of a new mode of collective excitation, exhausting a considerable fraction of the sum rule strenght [2, 3]. This so called Pygmy resonance, expe...

Low - lying dipole strength in 20

Two 1− levels at 5.35(10) and 6.85(5) MeV were observed for the first time in 20O. The strong direct excitation and subsequent γ -ray decay of these states in virtual photon scattering at 100 MeV/nucleon, along with B(Eλ) predictions for 20O states in this energy region, established their dipole character. The extracted B(E1)↑ values of 0.062(16) e2 fm2 and 0.035(9) e2 fm2 for the 5.35 and 6.85...