Band Crossings in 83Y Revisited
(1992) In Nuclear Physics, Section A 540(1-2). p.307-327- Abstract
- Gamma rays from the reaction Si-28(Ni-58, 3p)83Y at a beam energy of 195 MeV were recorded in recoil-gamma- and gamma-gamma-coincidence mode with the POLYTESSA array and the Daresbury recoil mass separator. The known rotational bands were extended up to probable spins 49/2+ and 45/2-; many new interconnecting dipole transitions and an additional cascade were established. The bands are interpreted in terms of the cranked shell model; they exhibit two band crossings each, associated with g9/2 neutron and proton alignment. In the negative-parity yrast bands a strong signature inversion with DELTA-e' = -100 keV and a crossing pattern alternating in the favoured and unfavoured band develop. Hartree-Fock-Bogolyubov cranking calculations with a... (More)
- Gamma rays from the reaction Si-28(Ni-58, 3p)83Y at a beam energy of 195 MeV were recorded in recoil-gamma- and gamma-gamma-coincidence mode with the POLYTESSA array and the Daresbury recoil mass separator. The known rotational bands were extended up to probable spins 49/2+ and 45/2-; many new interconnecting dipole transitions and an additional cascade were established. The bands are interpreted in terms of the cranked shell model; they exhibit two band crossings each, associated with g9/2 neutron and proton alignment. In the negative-parity yrast bands a strong signature inversion with DELTA-e' = -100 keV and a crossing pattern alternating in the favoured and unfavoured band develop. Hartree-Fock-Bogolyubov cranking calculations with a Woods-Saxon single-particle potential have been performed to illustrate the various shape changes and explain this signature inversion. (Less)
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https://lup.lub.lu.se/record/3963335
- author
- organization
- publishing date
- 1992
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nuclear Physics, Section A
- volume
- 540
- issue
- 1-2
- pages
- 307 - 327
- publisher
- Elsevier
- external identifiers
-
- scopus:0001474154
- ISSN
- 0375-9474
- DOI
- 10.1016/0375-9474(92)90206-Y
- language
- English
- LU publication?
- no
- additional info
- 1-2
- id
- 8cfc7ee1-cf0b-4280-bbbc-da9b8fff8988 (old id 3963335)
- alternative location
- http://www.sciencedirect.com/science/article/pii/037594749290206Y
- date added to LUP
- 2016-04-01 16:09:42
- date last changed
- 2021-09-12 03:57:53
@article{8cfc7ee1-cf0b-4280-bbbc-da9b8fff8988, abstract = {{Gamma rays from the reaction Si-28(Ni-58, 3p)83Y at a beam energy of 195 MeV were recorded in recoil-gamma- and gamma-gamma-coincidence mode with the POLYTESSA array and the Daresbury recoil mass separator. The known rotational bands were extended up to probable spins 49/2+ and 45/2-; many new interconnecting dipole transitions and an additional cascade were established. The bands are interpreted in terms of the cranked shell model; they exhibit two band crossings each, associated with g9/2 neutron and proton alignment. In the negative-parity yrast bands a strong signature inversion with DELTA-e' = -100 keV and a crossing pattern alternating in the favoured and unfavoured band develop. Hartree-Fock-Bogolyubov cranking calculations with a Woods-Saxon single-particle potential have been performed to illustrate the various shape changes and explain this signature inversion.}}, author = {{Cristancho, F. and Gross, C. J. and Lieb, K. P. and Rudolph, Dirk and Skeppstedt, O. and Bentley, M. A. and Gelletly, W. and Price, H. G. and Simpson, J. and Durell, J. L. and Varley, B. J. and Rastikerdar, S.}}, issn = {{0375-9474}}, language = {{eng}}, number = {{1-2}}, pages = {{307--327}}, publisher = {{Elsevier}}, series = {{Nuclear Physics, Section A}}, title = {{Band Crossings in 83Y Revisited}}, url = {{http://dx.doi.org/10.1016/0375-9474(92)90206-Y}}, doi = {{10.1016/0375-9474(92)90206-Y}}, volume = {{540}}, year = {{1992}}, }