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Observation of Isomeric Decays in the r-Process Waiting-Point Nucleus 130Cd

Jungclaus, A ; Rudolph, Dirk LU orcid ; Hellström, Margareta LU and Hoischen, Robert LU (2007) In Physical Review Letters 99(13).
Abstract
The gamma decay of excited states in the waiting-point nucleus 130Cd82 has been observed for the first time. An 8+ two-quasiparticle isomer has been populated both in the fragmentation of a 136Xe beam as well as in projectile fission of 238U, making 130Cd the most neutron-rich N=82 isotone for which information about excited states is available. The results, interpreted using state-of-the-art nuclear shell-model calculations, show no evidence of an N=82 shell quenching at Z=48. They allow us to follow nuclear isomerism throughout a full major neutron shell from 98Cd50 to 130Cd82 and reveal, in comparison with 76Ni48 one major proton shell below, an apparently abnormal scaling of nuclear two-body interactions.
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
99
issue
13
article number
132501
publisher
American Physical Society
external identifiers
  • wos:000249786700024
  • scopus:34748855776
  • pmid:17930581
ISSN
1079-7114
DOI
10.1103/PhysRevLett.99.132501
language
English
LU publication?
yes
id
8a57873f-3958-4e44-8a72-9c9bfcebb4c4 (old id 772042)
date added to LUP
2016-04-01 12:24:30
date last changed
2022-01-27 03:21:51
@article{8a57873f-3958-4e44-8a72-9c9bfcebb4c4,
  abstract     = {{The gamma decay of excited states in the waiting-point nucleus 130Cd82 has been observed for the first time. An 8+ two-quasiparticle isomer has been populated both in the fragmentation of a 136Xe beam as well as in projectile fission of 238U, making 130Cd the most neutron-rich N=82 isotone for which information about excited states is available. The results, interpreted using state-of-the-art nuclear shell-model calculations, show no evidence of an N=82 shell quenching at Z=48. They allow us to follow nuclear isomerism throughout a full major neutron shell from 98Cd50 to 130Cd82 and reveal, in comparison with 76Ni48 one major proton shell below, an apparently abnormal scaling of nuclear two-body interactions.}},
  author       = {{Jungclaus, A and Rudolph, Dirk and Hellström, Margareta and Hoischen, Robert}},
  issn         = {{1079-7114}},
  language     = {{eng}},
  number       = {{13}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Observation of Isomeric Decays in the r-Process Waiting-Point Nucleus 130Cd}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.99.132501}},
  doi          = {{10.1103/PhysRevLett.99.132501}},
  volume       = {{99}},
  year         = {{2007}},
}