Abstract
Reasons for the success of the particle-hole approach adopted by O'Connell, Donnelly, and Walecka in the unified interpretation of the semileptonic weak and eletromagnetic processes in the ( nuclear system will be examined. The example of the analyses of 0 ↔ 1 transitions in the context of the particle-hole model (PHM) and the intermediate-coupling model (ICM) brings to light two facts: (1) the nuclear matrix elements relevant to the 0 ↔ 1 transitions do not scale in a unique fashion from the PHM to the ICM; (2) the 0 ↔ 1 processes at low momentum transfer are overwhelmingly dominated by the Gamow-Teller matrix element. The dominance of a set of processes by one nuclear transition operator is the key to the success of the one-parameter scaling of the particle-hole amplitudes used by O'Connell, Donnelly, and Walecka.
- Received 24 October 1972
DOI:https://doi.org/10.1103/PhysRevC.7.1720
©1973 American Physical Society