Abstract
The statistical multistep direct theory is applied to the 90Zr(α, α′) reaction at 140 MeV. Using the averaging procedure already tested in (p, n) and ( p , p′0) reactions, DWBA matrix elements are employed to construct both the single-step and multistep cross sections in the continuum. It is shown that good fits for angular distributions in the 10–60 MeV excitation range can be achieved only by taking into account the interaction of the incoming α-particles with preformed α-particles in the target nucleus. By comparing both the shape and absolute value of cross sections with data, an α-clustering probability is extracted which is shown to be in agreement with independent analysis in the same mass region. Due to its surface localization, the possible role of inelastic α-scattering in the 100 MeV region to investigate α-clustering in nuclei is suggested.
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.
