Extended Superscaling of Electron Scattering from Nuclei

An extended study of scaling of the first and second kinds for inclusive electron scattering from nuclei is presented. Emphasis is placed on the transverse response in the kinematic region lying above the quasielastic peak. In particular, for the region in which electroproduction of resonances is expected to be important, approximate scaling of the second kind is observed and the modest breaking of it is shown probably to be due to the role played by an inelastic version of the usual scaling variable.Comment: LaTeX, 36 pages including 5 color postscript figures and 4 postscript figure

Superscaling of Inclusive Electron Scattering from Nuclei

We investigate the degree to which the concept of superscaling, initially developed within the framework of the relativistic Fermi gas model, applies to inclusive electron scattering from nuclei. We find that data obtained from the low energy loss side of the quasielastic peak exhibit the superscaling property, i.e., the scaling functions f(\psi') are not only independent of momentum transfer (the usual type of scaling: scaling of the first kind), but coincide for A \geq 4 when plotted versus a dimensionless scaling variable \psi' (scaling of the second kind). We use this behavior to study as yet poorly understood properties of the inclusive response at large electron energy loss.Comment: 33 pages, 12 color EPS figures, LaTeX2e using BoxedEPSF macros; email to [email protected]

Metal ion exchange in dinuclear macrocyclic complexes identified by electrospray mass spectrometry

Dicopper(I) complexes of a two-compartment 34-membered bis-dithiadiimine macrocycle (1) in solution in the presence of silver(I) ion display in electrospray mass spectrometry experiments the presence of AgCu(1)2+ and Ag2(1)2+ in addition to the original Cu2(1)2+, consistent with metal ion exchange in this helical complex occurring without fragmentation.National Council for Scientific ResearchSupport from the Australian Research Council and the Scientific and Technical Research Council of Turkey is gratefully acknowledged