Compound Nucleus Contributions to the Optical Potential

Conference · Mon Jan 28 00:00:00 EST 2008

DOI:https://doi.org/10.1063/1.2920716· OSTI ID:926023

Thompson, I J; Dietrich, F S; Escher, J E; Dupuis, M

An ab-initio calculation of the optical potential for neutron-nucleus scattering has been performed by explicitly coupling the elastic channel to all the particle-hole (p-h) excitation states in the target. These p-h states may be regarded as doorway states through which the flux flows to more complicated configurations, and (in the end) to long-lived compound nucleus resonances. The random-phase approximation (RPA) provides the linear combinations of p-h states that include the residual interactions within the target, and we show preliminary results for elastic flux loss using both p-h and RPA descriptions of target excitations.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 926023
• Report Number(s): LLNL-PROC-401271; TRN: US0802487
• Resource Relation: Journal Volume: 1005; Conference: Presented at: Compound-Nuclear Reactions and Related Topics, Fish Camp, CA, United States, Oct 22 - Oct 26, 2007
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
APPROXIMATIONS
EXCITATION
RESIDUAL INTERACTIONS
SCATTERING
TARGETS