We derive a compact formula for the width of a multi-channel resonance state. To this end, we use a deformed square-well potential and solve the coupled-channels equations. We obtain the S-matrix in the Breit-Wigner form, from which partial widths can be extracted. We apply the resultant formula to a deformed nucleus and discuss the behavior of partial width for an s-wave channel.
|Journal||Progress of Theoretical and Experimental Physics|
|Publication status||Published - 2020 Feb 28|
ASJC Scopus subject areas
- Physics and Astronomy(all)