Published May 1, 2000
| Version v1
Journal article
Evidence for Collective Oblate Rotation in N = Z 68Se
Description
A γ -ray spectroscopic measurement of the N=Z nucleus 68Se has been made following the 12C( 58Ni, 2 n) reaction at 185 and 220 MeV using Gammasphere and the Argonne Fragment Mass Analyzer. Despite a very low production cross section of 200(50) μb , two distinct rotational bands were found; the ground state band consistent with oblate collective rotation, and an excited band consistent with prolate rotation. These observations support long-standing predictions that nuclear ground states with substantial oblate (β2∼-0.3) deformation should exist in this region. (c) 2000 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 84
- Journal Issue
- 18
- Journal Page Range
- p. 4064-4067
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 32059995
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- CARBON 12 TARGET; EXPERIMENTAL DATA; GAMMA SPECTRA; NEUTRONS; NICKEL 58 REACTIONS; NUCLEAR DEFORMATION; ROTATIONAL STATES; SELENIUM 68
- Descriptors DEC
- BARYONS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; DATA; DEFORMATION; ELEMENTARY PARTICLES; ENERGY LEVELS; EVEN-EVEN NUCLEI; EXCITED STATES; FERMIONS; HADRONS; HEAVY ION REACTIONS; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; NUMERICAL DATA; RADIOISOTOPES; SELENIUM ISOTOPES; SPECTRA; TARGETS
- Proposed descriptors and Free-text terms
- nuclear rotational states; nuclear shape; nuclear energy level transitions