OPTICAL-MODEL ANALYSIS OF HIGH-ENERGY NEUTRONS SCATTERED BY DEFORMED NUCLEI

Journal Article · Mon Jan 01 04:00:00 EST 1962 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.125.359· OSTI ID:4818458

Corman, E G

Effects of target nuclear deformations upon high-energy differential elastic and rotational excitation cross sections for neutron scattering are investigated. An optical-model potential of cylindrically symmetrical ellipsoidal shape is used to represent the target nucleus. The deformed potential is first oriented parallel to each of the coordinate axes. The differential cross sections are evaluated and averaged over such orientations. Next, the potential is oriented at an arbitrary angle. The differential cross section is evaluated and averaged over all possible orientation angles. The foregoing averaged cross sections are compared with the cross sections obtained by assuming spherical nuclei for the cases of aluminum and lutetium. Third, differential cross sections with the simultaneous excitations of the target nucleus to higher rotational levels are investigated. Results of calculations are shown for a nucleus having the dimensions of lutetium in initial I = 0 and l = 7 spin states. Fourth, the cross section and polarization are investigated by assuming a spin-orbit interaction added to the central deformed potential. It is found that for an arbitrary nuclear orientation the polarization generally has a component parallel to the scattering plane. However, such a component vanishes upon averaging over orientations. (auth)

• Research Organization: Univ. of California, Livermore
• NSA Number: NSA-16-008228
• OSTI ID: 4818458
• Report Number(s): UCRL-6485; 0031-899X
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 125; ISSN PHRVA
• Country of Publication: United States
• Language: English

Related Subjects

ALUMINUM
ANGULAR DISTRIBUTION
CONFIGURATION
CROSS SECTIONS
DEFORMATION
ENERGY LEVELS
EXCITATION
INTERACTIONS
LUTETIUM
NEUTRONS
NUCLEAR MODELS
NUMERICALS
OPTICAL MODEL
ORBITS
PHYSICS
POLARIZATION
ROTATION
SCATTERING
SPIN
TARGETS