Reduced transition probabilities to the first 2{sup +} state in {sup 52,54,56}Ti and development of shell closures at N=32,34

Journal Article · Fri Apr 01 04:00:00 EST 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.71.041302· OSTI ID:20696034

Dinca, D -C; Brown, B A; Campbell, C M; Cook, J M; Glasmacher, T; Olliver, H; Terry, J R ^[1]; Janssens, R V.F.; Carpenter, M P ^[2]; Gade, A; Bazin, D; Lecouey, J -L; Mueller, W F; Yoneda, K ^[3]; Broda, R; Fornal, B ^[4]; Chowdhury, P ^[2]; Deacon, A N; Freeman, S J ^[5]; Honma, M ^[6]

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1. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
2. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
3. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
4. Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Cracow (Poland)
5. Department of Physics and Astronomy, Schuster Laboratory, University of Manchester, Manchester M13 9PL (United Kingdom)
6. Center for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi, Aizu-Wakamatsu, Fukushima 965-8580 (Japan); and others

The even {sup 52-56}Ti isotopes have been studied with intermediate-energy Coulomb excitation and absolute B(E2;0{sup +}{yields}2{sub 1}{sup +}) transition rates have been obtained. These data confirm the presence of a subshell closure at neutron number N=32 in neutron-rich nuclei above the doubly magic nucleus {sup 48}Ca and provide no direct evidence for the predicted N=34 closure. Large-scale shell model calculations with the most recent effective interactions are unable to reproduce the magnitude of the measured strengths in the semimagic Ti nuclei and their strong variation with neutron number.

• OSTI ID: 20696034
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 71; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALCIUM 48
COULOMB EXCITATION
E2-TRANSITIONS
ENERGY LEVELS
HEAVY ION REACTIONS
MAGIC NUCLEI
NEUTRON-RICH ISOTOPES
PARITY
PROBABILITY
SHELL MODELS
SPIN
TITANIUM 52
TITANIUM 53
TITANIUM 54
TITANIUM 55
TITANIUM 56