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Level structure of 92Rh: Implications for the Two-proton Decay of 94mAg

Pechenaya, O L; Andersson, Lise-Lotte LU ; Johansson, Emma LU and Rudolph, Dirk LU (2007) In Physical Review C (Nuclear Physics) 76(1).
Abstract
The 21+ isomer in 94Ag has recently been reported to have a two-proton decay branch to 92Rh. We have populated 92Rh through the 40Ca(58Ni,alphapn) reaction at 240 MeV, and have performed detailed spectroscopic measurements of the levels, finding new states and measuring angular distributions of gamma rays. We find no evidence for the states reported to be populated by the two-proton decay of 94Agm. The calculated Q-value for the two-proton decay implies that this process directly feeds low-lying yrast, or near-yrast, states in 92Rh, which is very difficult to reconcile with our observations. Several scenarios for the population of 92Rh are discussed, none of which appears to be satisfactory.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C (Nuclear Physics)
volume
76
issue
1
publisher
American Physical Society
external identifiers
  • wos:000248542400004
  • scopus:34547195872
ISSN
0556-2813
DOI
10.1103/PhysRevC.76.011304
language
English
LU publication?
yes
id
6fc889dc-1d85-40b7-aa9c-01944a58e3de (old id 772035)
date added to LUP
2007-12-18 17:09:19
date last changed
2017-10-22 04:47:51
@article{6fc889dc-1d85-40b7-aa9c-01944a58e3de,
  abstract     = {The 21+ isomer in 94Ag has recently been reported to have a two-proton decay branch to 92Rh. We have populated 92Rh through the 40Ca(58Ni,alphapn) reaction at 240 MeV, and have performed detailed spectroscopic measurements of the levels, finding new states and measuring angular distributions of gamma rays. We find no evidence for the states reported to be populated by the two-proton decay of 94Agm. The calculated Q-value for the two-proton decay implies that this process directly feeds low-lying yrast, or near-yrast, states in 92Rh, which is very difficult to reconcile with our observations. Several scenarios for the population of 92Rh are discussed, none of which appears to be satisfactory.},
  articleno    = {011304(R)},
  author       = {Pechenaya, O L and Andersson, Lise-Lotte and Johansson, Emma and Rudolph, Dirk},
  issn         = {0556-2813},
  language     = {eng},
  number       = {1},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Level structure of 92Rh: Implications for the Two-proton Decay of 94mAg},
  url          = {http://dx.doi.org/10.1103/PhysRevC.76.011304},
  volume       = {76},
  year         = {2007},
}