Analysis of the (p,t) reaction on /sup 158/Dy. [29. 9 MeV:Q, angular distributions, coupled-channels approach]

Journal Article · Wed Jun 01 04:00:00 UTC 1977 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.15.1947· OSTI ID:7303984

Kolata, J J; Oothoudt, M

The level structure of /sup 156/Dy has been investigated with the (p,t) reaction at 29.9-MeV incident proton energy. Angular distributions were measured for transitions to 34 levels up to an excitation energy of 2.25 MeV in /sup 156/Dy. The ground-state Q value for this reaction was determined to be Q/sub 0/ = -7.535 +- 0.015 MeV. Optical-model parameters were obtained self-consistently in the coupled-channels approach, and reaction calculations using these parameters demonstrated a very large destructive interference between direct and indirect transfer to the 2/sup +/ member of the ground-state band. The anomalously strong transition to the J/sup ..pi../ = 0/sup +/ state at 674 keV is interpreted in the model of Van Rij and Kahana, leading to suggestions as to the structure of this state. The strong L = 2 transition to the J/sup ..pi../ = 2/sup +/ state at 890 keV is also discussed. Further evidence is given on the structure of the J/sup ..pi../ = 2/sup +/ state at 1520 keV, and the J/sup ..pi../ = 4/sup +/ state at 1627.3 keV, which has been suggested to belong to the ''super'' band in /sup 156/Dy.

• Research Organization: Brookhaven National Laboratory, Upton, New York 11973
• OSTI ID: 7303984
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 15:6; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BARYON REACTIONS
BORN APPROXIMATION
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
COUPLED CHANNEL BORN APPROXIMATION
DIRECT REACTIONS
DISTRIBUTION
DYSPROSIUM 156
DYSPROSIUM 158 TARGET
DYSPROSIUM ISOTOPES
ENERGY
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
HADRON REACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
KINETICS
MEV RANGE
MEV RANGE 10-100
MULTI-NUCLEON TRANSFER REACTIONS
NUCLEAR REACTION KINETICS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
OPTICAL MODELS
PICKUP REACTIONS
PROTON REACTIONS
Q-VALUE
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
REACTION KINETICS
STABLE ISOTOPES
TARGETS
TRANSFER REACTIONS
TRITONS
TWO-NUCLEON TRANSFER REACTIONS