Elastic and inelastic scattering of polarized protons from lead-206 and lead-208 near isobaric analog resonances
Excitation functions have been measured for elastic scattering of polarized protons from /sup 206/Pb and /sup 208/Pb, and for inelastic scattering to collective states in /sup 206/Pb(2/sup +/, 0.8033 MeV; 3/sup -/, 2.647 MeV) and /sup 208/Pb(3/sup -/, 2.6145 MeV). Both differential cross sections and analyzing powers were measured at theta/sub lab/ = 120/sup 0/, 135/sup 0/, 150/sup 0/, and 165/sup 0/, for E/sub p/ = 14.25 to 18 MeV. Fits to the excitation-function data were obtained using scattering amplitudes consisting of sums of resonant and nonresonant parts. The resonances are the isobaric analogs (IARs) of 7 low-lying states in /sup 209/Pb and 35 in /sup 207/Pb. The fits to the elastic-scattering data are excellent; for the inelastic scattering the fit is very good for the 2/sup +/ state but only fair for the 3/sup -/ states. For each IAR, the energy, the total width, and the partial width and mixing phase in each channel were obtained. Also, new spin assignments were made for a number of parent states in /sup 207/Pb. The theory of Bund and Blair was used to find the spectroscopic amplitudes, which provide information on the wave functions for the parent states in /sup 207/Pb and /sup 209/Pb and for the 3/sup -/ states in /sup 206/Pb and /sup 208/Pb. These spectroscopic amplitudes were then checked for internal consistency and compared with the results of other experiments and with theoretical predictions.
- Research Organization:
- Washington Univ., Seattle (USA)
- OSTI ID:
- 7184884
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
Similar Records
Elastic and inelastic scattering of polarized protons from /sup 206/Pb near isobaric analog resonances
Elastic and inelastic scattering of polarized protons from /sup 206/Pb near isobaric analog resonances
Related Subjects
LEAD 206 TARGET
PROTON REACTIONS
LEAD 208 TARGET
ELASTIC SCATTERING
INELASTIC SCATTERING
ANALYZING POWER
ANGULAR DISTRIBUTION
DIFFERENTIAL CROSS SECTIONS
ENERGY LEVELS
EXCITATION FUNCTIONS
EXPERIMENTAL DATA
ISOBARIC ANALOGS
LEAD 206
LEAD 207
LEAD 208
LEAD 209
MEV RANGE 10-100
POLARIZED BEAMS
SPIN
ANGULAR MOMENTUM
BARYON REACTIONS
BEAMS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DISTRIBUTION
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FUNCTIONS
HADRON REACTIONS
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INFORMATION
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD ISOTOPES
MEV RANGE
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
PARTICLE PROPERTIES
RADIOISOTOPES
SCATTERING
SECONDS LIVING RADIOISOTOPES
STABLE ISOTOPES
TARGETS
651925* - Nuclear Properties & Reactions
A=190-219
Experimental- Nuclear Reactions & Scattering- (-1987)
651923 - Nuclear Properties & Reactions
A=190-219
Experimental- Energy Levels & Transitions- (-1987)