Excitation of the low-energy octupole resonance in /sup 90/Zr by 0. 8 GeV proton inelastic scattering

Journal Article · Wed Aug 01 04:00:00 EDT 1979 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.20.693· OSTI ID:6125366

DiGiacomo, N J; Peterson, R J

Analysis of 0.8 GeV proton inelastic scattering by /sup 90/Zr has yielded the angular distribution of a broad peak located at 32 A/sup -1/3/ MeV with a width of approximately 2.2 MeV. The angular distribution, extending from 1.0 to 3.2 fm/sup -1/, agrees well with L = 3 collective distorted-wave Born-approximation calculations. A deformation length ..beta..R of 0.80 fm is obtained. The isoscalar energy weighted sum rule fraction exhausted by an octupole excitation at 7.2 MeV in /sup 90/Zr with this deformation length is 23%. The 3/sup -/ state at 2.75 MeV in /sup 90/Zr is found to exhaust 8% of the isoscalar energy weighted sum rule. These results are in excellent agreement with recent (..cap alpha..,..cap alpha..') work which established the existence of the low-energy octupole resonance.

• Research Organization: Nuclear Physics Laboratory, University of Colorado, Boulder, Colorado 80309
• OSTI ID: 6125366
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 20:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISTRIBUTION
DWBA
ENERGY LEVELS
ENERGY RANGE
EQUATIONS
EVEN-EVEN NUCLEI
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INELASTIC SCATTERING
INTERACTIONS
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEV RANGE
MEV RANGE 100-1000
MULTIPOLES
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
OCTUPOLES
PARITY
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PROTON REACTIONS
RADIOISOTOPES
RESONANCE SCATTERING
SCATTERING
SCATTERING AMPLITUDES
SPIN
STABLE ISOTOPES
SUM RULES
TARGETS
ZIRCONIUM 90
ZIRCONIUM 90 TARGET
ZIRCONIUM ISOTOPES