Level structure of /sup 175/Yb and /sup 177/Yb via the /sup 174,176/Yb(d,p) /sup 175,177/Yb and /sup 176/Yb(d,t)/sup 175/Yb reactions

Journal Article · Thu Mar 01 04:00:00 EST 1979 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.19.674· OSTI ID:6204776

Tarara, R W; Browne, C P

We studied /sup 175/Yb with the /sup 176/Yb (d,t) and /sup 174/Yb (d,p) reactions and /sup 177/Yb with the /sup 176/Yb (d,p) reaction. We report 129 levels below 2550 keV in /sup 175/Yb, 63 of which are previously unreported and 71 levels below 2700 keV in /sup 177/YB, 19 of which are new. We identified a few of these levels as possibly assigned to the wrong isotope because of isotopic contamination of the targets. The adopted 1104- amd 1167-keV states in /sup 177/Yb are among these identifications. We took angular distributions on all three reactions and compared the data to distorted-wave Born-approximation theory to extract l values. The (d,t) distributions yield a few cases of anomalously shaped distributions, especially in the case of the 603.3-keV state in /sup 175/Yb. The distribution data contradict a few tentative assignments and we can make several new l assignments. Extensions of the proposed band structures of these nuclei suggest possible placements and spin assignments for a few additional states. We also show how the revised level schemes can be used to interpret data already in the literature.

• Research Organization: University of Notre Dame, Notre Dame, Indiana 46556
• OSTI ID: 6204776
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 19:3; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651823* -- Nuclear Properties & Reactions
A=150-189
Experimental-- Energy Levels & Transitions-- (-1987)
651825 -- Nuclear Properties & Reactions
A=150-189
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BORN APPROXIMATION
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DAYS LIVING RADIOISOTOPES
DEUTERON REACTIONS
DIRECT REACTIONS
DISTRIBUTION
DWBA
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXCITATION
FERMIONS
HADRONS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
ONE-NUCLEON TRANSFER REACTIONS
PARITY
PARTICLE PROPERTIES
PROTONS
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SECONDS LIVING RADIOISOTOPES
SPIN
SPIN PROTONS
STRIPPING
TARGETS
TRANSFER REACTIONS
TRITONS
YTTERBIUM 174 TARGET
YTTERBIUM 175
YTTERBIUM 176 TARGET
YTTERBIUM 177
YTTERBIUM ISOTOPES