THE IMAGINARY PART OF THE OPTICAL MODEL POTENTIAL FOR NEUTRON INTERACTIONS WITH NUCLEI

Journal Article · Tue Dec 01 04:00:00 EST 1959 · Annals of Physics (New York) (U.S.)

DOI:https://doi.org/10.1016/0003-4916(59)90075-2· OSTI ID:4192299

Shaw, G L

The Brueckner nuclear many-body theory is modified so that it can be applied to the problem of dealing with quasi-stationary states such as low-energy neutron interactions with heavy nuclei taking into account the identity of the incident neutron with the nucleons in the nucleus. An expression for an optical model potential is obtained, and the imaginary part W is calculated. The results indicate a surface absorption potential: W, for a given incident neutron energy, has a constant central region and reaches a peak> twice the central value in the surface region. An investigation is made of the next step after the compound state is formed. For heavy nuclei, compound nucleus formation dominates over compound elastic scattering. For light nuclei (A < 50), there may be fluctuations of the cross section related to two-particle states. (auth)

• Research Organization: Cornell Univ., Ithaca, N.Y.
• NSA Number: NSA-14-004863
• OSTI ID: 4192299
• Journal Information: Annals of Physics (New York) (U.S.), Journal Name: Annals of Physics (New York) (U.S.) Vol. Vol: 8; ISSN APNYA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
BRUECKNER MODEL
COMPOUND NUCLEI
CROSS SECTIONS
ELASTIC SCATTERING
ENERGY
EXCITATION
INTERACTIONS
MANY BODY PROBLEM
MASS NUMBER
NEUTRONS
NUCLEAR MODELS
NUCLEI
NUCLEONS
OPTICAL MODEL
PHYSICS
SCATTERING
SURFACES
VARIATIONS