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The structure of nuclei far from beta stability: A progress report for the period May 15, 1987 to May 14, 1988

Technical Report ·
OSTI ID:5158566
The research at UNISOR constitues the major effort of our work on far from stability nuclei. The extensive data from the UNISOR studies on the neutron-deficient Tl Hg, Au and Pt isotopes has not only established a new region of nuclear deformation and a new class of nuclear structure at closed shells; but, after full analysis, will ultimately transform our present understanding of shape coexistence. Our experimental approach is to take great care to obtain accurate experimental information and then to take equally great care in its interpretation. We have shown in the study of the odd-A Au isotopes that one can use the odd proton to probe the even-even Pt cores and thus expose the finer details of the coexisting structures in those cores. We have also shown that to utilize such an approach one must systematically track all states below about 1 MeV across isotopic or isotonic sequences; and that to accomplish such a tracking it is necessary to push the spectroscopic measurements to new limits in terms of quality and statistics. The major results of the recent work involve the developemnt of a unified description of intruder states and shape coexistence in nuclei.
Research Organization:
Louisiana State Univ., Baton Rouge (USA). Dept. of Physics and Astronomy
DOE Contract Number:
FG05-84ER40159
OSTI ID:
5158566
Report Number(s):
DOE/ER/40159-130; ON: DE88006542
Country of Publication:
United States
Language:
English

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Related Subjects

651820* -- Nuclear Properties & Reactions
A=150-189
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651920 -- Nuclear Properties & Reactions
A=190-219
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BRANCHING RATIO
CONVERSION
DATA ANALYSIS
DAYS LIVING RADIOISOTOPES
DECAY
DEFORMED NUCLEI
DOCUMENT TYPES
ELECTRON CAPTURE RADIOISOTOPES
ELECTRON SPECTROSCOPY
ENERGY LEVELS
EVEN-EVEN NUCLEI
GOLD 185
GOLD 187
GOLD 189
GOLD ISOTOPES
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INTERNAL CONVERSION
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
K CONVERSION
MERCURY 186
MERCURY 188
MERCURY 190
MERCURY ISOTOPES
MINUTES LIVING RADIOISOTOPES
NUCLEAR STRUCTURE
NUCLEI
ODD-EVEN NUCLEI
PLATINUM 184
PLATINUM 186
PLATINUM 188
PLATINUM ISOTOPES
PROGRESS REPORT
RADIOISOTOPES
RESEARCH PROGRAMS
SECONDS LIVING RADIOISOTOPES
SPECTROSCOPY
THALLIUM 195
THALLIUM ISOTOPES