[paper] The orbital g-factor and related sum rules

The orbital g-factor and related sum rules

Wolfgang Bentz and Akito Arima

The renormalization of the orbital g-factor in nuclei is discussed on the basis of gauge invariance. The relation of the orbital g-factor to the integrated E1 photoabsorption cross section is reviewed, and its relation to the M1 sum rule for the scissors mode of deformed nuclei is examined.