Collective Motions in A = 100-112 Nuclei

Journal Article · Mon Oct 11 04:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3507206· OSTI ID:21426620

Hamilton, J H; Ramayya, A V; Hwang, J K; Goodin, C ^[1]; Zhu, S J ^[2]; Luo, Y X ^[1]; Rasmussen, J O ^[3]; Frauendorf, S ^[4]; Ter-Akopian, G M ^[5]

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1. Physics Department, Vanderbilt University, Nashville, TN 37235 (United States)
2. Physics Department, Tsinghua University, Beijing 100084 (China)
3. Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)
4. Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States)
5. Flerov Laboratory for Nuclear Reactions, JINR, Dubna 141980 (Russian Federation)

With a very high statistics data set with 5.7x10{sup 11} triple and higher fold {gamma} coincidences from the spontaneous fission of {sup 252}Cf, a wealth of fascinating new collective motions in nuclei with A = 100-112 have been observed. Nothing was known previously about one- and two-phonon {gamma}-bands in odd-A nuclei. We discovered the first one-and two- phonon {gamma} vibrational bands in an odd N-even Z nucleus, {sup 105}Mo. The energies of the one- and two- phonon bands in {sup 104}Mo, {sup 105}Mo, {sup 106}Mo and {sup 108}Mo were recently studied and are remarkably similar in energies. The first chiral doublet bands in e-e nuclei were observed in triaxial {sup 106,108}Mo and {sup 110,112}Ru while such chiral band in {sup 108}Ru are perturbed by its {gamma}-soft shape. The experimental evidences, including our recent angular correlation studies are presented along with what these new bands are telling us about the evolving collective structures and deformation in this region.

• OSTI ID: 21426620
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1280; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
ANGULAR CORRELATION
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
CHIRALITY
COLLECTIVE MODEL
CORRELATIONS
DECAY
DEFORMATION
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXCITED STATES
FISSION
GAMMA RADIATION
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
MATHEMATICAL MODELS
MINUTES LIVING RADIOISOTOPES
MOLYBDENUM 104
MOLYBDENUM 105
MOLYBDENUM 106
MOLYBDENUM 108
MOLYBDENUM ISOTOPES
NUCLEAR DECAY
NUCLEAR DEFORMATION
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEAR STRUCTURE
NUCLEI
PARTICLE PROPERTIES
RADIATIONS
RADIOISOTOPES
RUTHENIUM 108
RUTHENIUM 112
RUTHENIUM ISOTOPES
SECONDS LIVING RADIOISOTOPES
SPONTANEOUS FISSION
SPONTANEOUS FISSION RADIOISOTOPES
VIBRATIONAL STATES
YEARS LIVING RADIOISOTOPES