Compilation of electromagnetic transition rates in light nuclei ( A ≤ 40)

Abstract

Data on absolute electromagnetic transition rates in nuclei of the 1p- and 2s1d-shells are presented. Table I lists the experimental results for partial widths with quoted errors, transition strengths, and reduced transition probabilities. This table also contains averages and mean errors of the averages in cases where more than one experimental result on a certain transition is available. Table II contains additional information, mainly mixing ratios which were used to calculate transition strengths in mixed transitions, as well as widths or lifetimes which could not be further reduced. Branching ratios are not listed. Table III presents a survey of mean transition strengths and of standard deviations from the mean values for the various multipole types of transitions, subdivided according to the isospin selection rules. The distributions of the transition strengths are presented in a number of histograms. The dependence of the transition strengths on the mass number and excitation energy, as well as T-forbiddeness factors, are discussed and in some cases graphically illustrated.