2019/03/05 by K. Hagino, H. Sagawa, Hagino, K. +5
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Nuclear Theory (nucl-th) #Nuclear physics research studies #Quantum chaos and dynamical systems
paper · pdf · doi:10.48550/arxiv.1903.01634
openalex publication_date 2019/03/05 · openalex created_date 2019/03/11 · openalex updated_date 2026/07/28
We derive a simple 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.