Abstract
As a function of energy E, the average strength function S ( E ) ¯ of a doorway state is commonly assumed to be Lorentzian in shape and characterized by two parameters, the peak energy E 0 and the spreading width Γ ↓ . The simple picture is modified when the density of background states that couple to the doorway state changes significantly in an energy interval of size Γ ↓ . For that case we derive an approximate analytical expression for S ( E ) ¯ . We test our result successfully against numerical simulations. Our result may have important implications for shell-model calculations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
