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Isomeric decays in neutron-rich W, Os and Pt nuclei

Podolyak, Z ; Caamano, M ; Regan, PH ; Walker, PM ; Mayet, P ; Gerl, J ; Schlegel, C ; Hellstrom, M ; Mineva, Milena LU and Pfutzner, M (2002) In Progress of Theoretical Physics. Supplement p.467-472
Abstract
Relativistic energy fragmentation of a 1 GeV/nucleon Pb-208 beam was used to populate a wide range of nuclei on both sides of the valley of beta-stability. The structure of these nuclei was studied by the identification of discrete gamma-ray transitions depopulating isomeric states with lifetimes in the nano- to millisecond range. Highlights of the experiment include the first observation of gamma-ray transitions in the neutron-rich nuclei (188)TA, W-190, Re-192, Os-195, Ir-197,Ir-198, Pt-201,Pt-202. The yrast states in W-190 and Pt-202 as well as the decay out from 10-20 ns isomers in Pt-202,Pt-201 and Os-195 are discussed. The observation of the previously reported isomeric K = 35/2 states in Hf-175, W-179 and Re-181 represents the... (More)
Relativistic energy fragmentation of a 1 GeV/nucleon Pb-208 beam was used to populate a wide range of nuclei on both sides of the valley of beta-stability. The structure of these nuclei was studied by the identification of discrete gamma-ray transitions depopulating isomeric states with lifetimes in the nano- to millisecond range. Highlights of the experiment include the first observation of gamma-ray transitions in the neutron-rich nuclei (188)TA, W-190, Re-192, Os-195, Ir-197,Ir-198, Pt-201,Pt-202. The yrast states in W-190 and Pt-202 as well as the decay out from 10-20 ns isomers in Pt-202,Pt-201 and Os-195 are discussed. The observation of the previously reported isomeric K = 35/2 states in Hf-175, W-179 and Re-181 represents the highest discrete spin states observed to date following a projectile fragmentation reaction. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Progress of Theoretical Physics. Supplement
issue
146
pages
467 - 472
publisher
Progress of Theoretical Physics
external identifiers
  • wos:000180190000059
  • scopus:0036993831
ISSN
0375-9687
language
English
LU publication?
yes
id
d6ff5781-6889-495c-b928-7a7872a065a6 (old id 320108)
alternative location
http://ptp.ipap.jp/link?PTPS/146/467/
date added to LUP
2016-04-01 17:06:03
date last changed
2022-01-29 00:22:59
@article{d6ff5781-6889-495c-b928-7a7872a065a6,
  abstract     = {{Relativistic energy fragmentation of a 1 GeV/nucleon Pb-208 beam was used to populate a wide range of nuclei on both sides of the valley of beta-stability. The structure of these nuclei was studied by the identification of discrete gamma-ray transitions depopulating isomeric states with lifetimes in the nano- to millisecond range. Highlights of the experiment include the first observation of gamma-ray transitions in the neutron-rich nuclei (188)TA, W-190, Re-192, Os-195, Ir-197,Ir-198, Pt-201,Pt-202. The yrast states in W-190 and Pt-202 as well as the decay out from 10-20 ns isomers in Pt-202,Pt-201 and Os-195 are discussed. The observation of the previously reported isomeric K = 35/2 states in Hf-175, W-179 and Re-181 represents the highest discrete spin states observed to date following a projectile fragmentation reaction.}},
  author       = {{Podolyak, Z and Caamano, M and Regan, PH and Walker, PM and Mayet, P and Gerl, J and Schlegel, C and Hellstrom, M and Mineva, Milena and Pfutzner, M}},
  issn         = {{0375-9687}},
  language     = {{eng}},
  number       = {{146}},
  pages        = {{467--472}},
  publisher    = {{Progress of Theoretical Physics}},
  series       = {{Progress of Theoretical Physics. Supplement}},
  title        = {{Isomeric decays in neutron-rich W, Os and Pt nuclei}},
  url          = {{http://ptp.ipap.jp/link?PTPS/146/467/}},
  year         = {{2002}},
}