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

Jungclaus, A; Rudolph, Dirk LU ; 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
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
99
issue
13
publisher
American Physical Society
external identifiers
  • wos:000249786700024
  • scopus:34748855776
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
2007-12-19 08:50:07
date last changed
2017-10-08 03:40:32
@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.},
  articleno    = {132501},
  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},
  volume       = {99},
  year         = {2007},
}