Strengths of gamma-ray transitions in A = 6–44 nuclei (III)

Abstract

The present tables list the strengths (in Weisskopf units) of over 2400 γ-ray transitions in A = 6–44 nuclei, classified according to character (electric or magnetic, multipolarity, isospin forbiddenness). Selected transitions from unbound states are included. The strengths for isovector E1 and M1 transitions (E1IV and M1IV) show a marked decrease with A. Strengths depended very little on the excitation energy of the initial state. The new data incorporated in the table haave not given rise to changes in the recommended upper limits (RUL) for γ-ray strengths presently in use. The only exception is the (spectroscopically unimportant) RUL for E1IV transitions which should be raised from 0.1 to 0.3 W.u. for A = 6–20 nuclei.