Phenomenological analysis of dispersion corrections for neutron and proton scattering from /sup 208/Pb

Journal Article · Wed Mar 01 04:00:00 UTC 1989 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.39.804· OSTI ID:6340979

Finlay, R W; Wierzbicki, J; Das, R K; Dietrich, F S

Elastic scattering of protons and neutrons from /sup 208/Pb in the energy range up to 61.4 MeV is analyzed in order to establish a consistent phenomenology with which to examine the recent results of dispersion theory. The present analysis avoids conventional assumptions about the energy dependences of potential depths or geometrical parameters and attempts to include estimates of the uncertainty in our knowledge of the derived potential parameters. Recently reported evidence for energy-dependent geometrical parameters in the n+/sup 208/Pb potential is supported by the present analysis, but no comparable effect is observed for phenomenological proton potentials in the range of available data (E/sub p/>9 MeV). The present analysis shows that, unlike the situation for heavy-ion scattering, the Coulomb potential does not cut off the imaginary potential for p+/sup 208/Pb. Consequently, no rapid excursions in the parameters of the p+/sup 208/Pb potential are expected to occur until the incident energy is well below the Coulomb barrier where the nuclear potential is essentially unobservable.

• Research Organization: Ohio University, Athens, Ohio 45701
• OSTI ID: 6340979
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 39:3; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
COULOMB FIELD
DISPERSION RELATIONS
ELASTIC SCATTERING
ELECTRIC FIELDS
ENERGY DEPENDENCE
ENERGY RANGE
HADRON REACTIONS
HARTREE-FOCK METHOD
LEAD 208 TARGET
MEAN-FIELD THEORY
MEV RANGE
MEV RANGE 10-100
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OPTICAL MODELS
PROBABILITY
PROTON REACTIONS
SCATTERING
TARGETS