Results in Nuclear Physics

To show the impact of laser spectroscopy on nuclear physics we discuss selected results from the aspect of information about the nuclear structure. Owing to collinear-beam spectroscopy it has now been possible to study a number of interesting regions all over the chart of nuclides. 

The direct measurement of nuclear ground (and isomeric) state spins from the hfs is of basic importance for all indirect spin assignments of nuclear spectroscopy. The spins provide a stringent test of theoretically 

The magnetic dipole moments are sensitive to details of the singlenucleon wave functions. Thus the mixture of opposite-parity orbitals in the 

A quantitative theoretical understanding of the magnetic moments is established only for nuclei that have one particle or hole in a doubly magic core. For these nuclei an effective operator for the moment can be written as  

The spin and orbital gyromagnetic ratios g, and gj are the free nucleon values Sg, and 8gi are caused by both core polarization and meson exchange. The last term, arising from the dipole-dipole interaction, is a rank-one tensor product of the spherical harmonic of order 2, Y, and the spin operator. The separate contributions of Sg, 8g(, and gp can be extracted from experimental data that include high-spin and low-spin states and can also be calculated by theory. For the rather extensive evaluation of the neighborhood of 2o pjj/i57) gystematjcg hag en closed 

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