Published September 13, 2010
| Version v1
Journal article
Enhanced collectivity in 74Ni
Creators
- 1. RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)
- 2. Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501 (Japan)
- 3. Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033 (Japan)
- 4. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321 (United States)
- 5. Department of Physics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro-ku, Tokyo 152-8551 (Japan)
- 6. Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047 (Japan)
- 7. Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871 (Japan)
Description
The neutron-rich nucleus 74Ni was studied with inverse-kinematics inelastic proton scattering using a 74Ni radioactive beam incident on a liquid hydrogen target at a center-of-mass energy of 80 MeV. From the measured de-excitation γ rays, the population of the first 2+ state was quantified. The angle-integrated excitation cross section was determined to be 14(4) mb. A deformation length of δ=1.04(16) fm was extracted in comparison with distorted wave theory, which suggests that the enhancement of collectivity established for 70Ni continues up to 74Ni. A comparison with results of shell model and quasi-particle random phase approximation calculations indicates that the magic character of Z=28 or N=50 is weakened in 74Ni.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physletb.2010.07.052Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2010.07.052;
- arXiv
- arXiv:1008.0477v1;
- PII
- S0370-2693(10)00904-4;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 692
- Journal Issue
- 5
- Journal Page Range
- p. 302-306
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42018162
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- CENTER-OF-MASS SYSTEM; COMPARATIVE EVALUATIONS; CROSS SECTIONS; DE-EXCITATION; DISTORTED WAVE THEORY; EXCITATION; GAMMA RADIATION; HYDROGEN; INELASTIC SCATTERING; MEV RANGE; NEUTRON-RICH ISOTOPES; NICKEL 70; NICKEL 74; PARTICLE BEAMS; PROTONS; QUASI PARTICLES; RANDOM PHASE APPROXIMATION; SHELL MODELS
- Descriptors DEC
- APPROXIMATIONS; BARYONS; BEAMS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CALCULATION METHODS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVALUATION; EVEN-EVEN NUCLEI; FERMIONS; HADRONS; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; ISOTOPES; MATHEMATICAL MODELS; NICKEL ISOTOPES; NONMETALS; NUCLEAR MODELS; NUCLEI; NUCLEONS; RADIATIONS; RADIOISOTOPES; SCATTERING; SECONDS LIVING RADIOISOTOPES
Optional Information
- Copyright
- Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.