High-spin structure of {sup 37}Cl, intruder excitations, and the sd-fp shell gap
- National Institute for Physics and Nuclear Engineering, Bucharest (Romania)
- Dipartimento di Fisica dell'Universita and INFN, Sezione di Padova, Padova (Italy)
- INFN, Laboratori Nazionali di Legnaro, Legnaro (Italy)
- Instituto de Fisica, Universidade de Sao Paolo, Sao Paolo (Brazil)
- University of Tokyo, Hongo, Tokyo 113-0033 (Japan)
- Japan Atomic Energy Research Agency, Tokai, Ibaraki 319-1195 (Japan)
The structure of the N=20 nucleus {sup 37}Cl has been investigated in the {sup 24}Mg({sup 16}O,3p) reaction with a 70 MeV {sup 16}O beam. A complex level scheme extended up to an excitation energy of 17 MeV and spins (29/2{sup +}) and (27/2{sup -}) on positive and negative parity, respectively, has been established. Lifetimes for the new states have been investigated by the Doppler shift attenuation method. Large-scale shell-model calculations have been performed in a valence space involving orbitals in the sd and fp shells using the sdfp and SDPF-M effective interactions. The comparison with the experimental data indicates the need for slight changes of the sd-fp energy gaps produced by these interactions.
- OSTI ID:
- 21293825
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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