Electromagnetically induced nuclear beta decay calculated by a Green's function method
The transition probability for enhancement of forbidden nuclear beta decay by an applied plane-wave electromagnetic field is calculated in a nonrelativistic spinless approximation by a Green's function method. The calculation involves a stationary-phase approximation. The stationary phase points in the presence of an intense field are located in very different positions than they are in the field-free case. In order-of-magnitude terms, the results are completely consistent with an earlier, much more complete wave-function calculation which includes spin and relativistic effects. Both the present Green's function calculation and the earlier wave function calculation give electromagnetic contributions in first-forbidden nuclear beta decay matrix elements which are of order (R/sub 0//lambda-dash-bar/sub C/)/sup 2/ with respect to allowed decays, where R/sub 0/ is the nuclear radius and lambda-dash-bar/sub C/ is the electron Compton wavelength.
- Research Organization:
- Arizona Research Laboratories, University of Arizona, Tucson, Arizona 85721 and Physics Department, The American University, Washington, D.C. 20016
- OSTI ID:
- 6527929
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 29:6; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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