Abstract
The elastic scattering of has been studied by means of a phase-shift analysis of 21 angular distributions ranging from up to A tridimensional plot of the reflection coefficient of the S matrix as a function of the angular momentum and energy shows a well-defined region of energy, which separates two regimes: strong absorption for higher energies and the so-called “anomalous transparency regime,” recently observed in this system at low energies. The Argand diagrams of the S matrix in angular momentum space also present very contrasting behaviors in the two regions with very rapidly varying phases in the low energy region, which we associate with a parity dependent term in the S matrix directly related to significant coupling to the elastic transfer of a nucleus.
- Received 18 June 1999
DOI:https://doi.org/10.1103/PhysRevC.60.041601
©1999 American Physical Society