Abstract The first evidence for β-delayed proton emission from the 16+ spin gap isomer in 96Cd is presented. The data were obtained from the Rare Isotope Beam Factory, at the RIKEN Nishina Center, using the BigRIPS spectrometer and the EURICA decay station. βp branching ratios for the ground state and 16+ isomer have been extracted along with more precise lifetimes for these states and the lifetime for the ground state decay of 95Cd. Large scale shell model (LSSM) calculations have been performed and WKB estimates made for ℓ=0,2,4 proton emission from three resonance-like states in 96Ag, that are populated by the β decay of the isomer, and the results compared to the new data. The calculations suggest that ℓ=2 proton emission from the resonance states, which reside ∼5 MeV above the proton separation energy, dominates the proton decay. The results highlight the importance of core-excited wavefunction components for the 16+ state.
Description
The role of core excitations in the structure and decay of the 16+ spin-gap isomer in 96Cd - ScienceDirect
%0 Journal Article
%1 DAVIES2017474
%A Davies, P.J.
%A Grawe, H.
%A Moschner, K.
%A Blazhev, A.
%A Wadsworth, R.
%A Boutachkov, P.
%A Ameil, F.
%A Yagi, A.
%A Baba, H.
%A Bäck, T.
%A Dewald, M.
%A Doornenbal, P.
%A Faestermann, T.
%A Gengelbach, A.
%A Gerl, J.
%A Gernhäeuser, R.
%A Go, S.
%A Górska, M.
%A Gregor, E.
%A Isobe, T.
%A Jenkins, D.G.
%A Hotaka, H.
%A Jolie, J.
%A Kojouharov, I.
%A Kurz, N.
%A Lewitowicz, M.
%A Lorusso, G.
%A Maier, L.
%A Merchan, E.
%A Naqvi, F.
%A Nishibata, H.
%A Nishimura, D.
%A Nishimura, S.
%A Nowacki, F.
%A Pietralla, N.
%A Schaffner, H.
%A Söderström, P.-A.
%A Jung, H.S.
%A Steiger, K.
%A Sumikama, T.
%A Taprogge, J.
%A Thöle, P.
%A Warr, N.
%A Watanabe, H.
%A Werner, V.
%A Xu, Z.Y.
%A Yoshinaga, K.
%A Zhu, Y.
%D 2017
%J Physics Letters B
%K blazhev dewald myown
%P 474 - 479
%R https://doi.org/10.1016/j.physletb.2017.02.013
%T The role of core excitations in the structure and decay of the 16+ spin-gap isomer in 96Cd
%U http://www.sciencedirect.com/science/article/pii/S037026931730103X
%V 767
%X Abstract The first evidence for β-delayed proton emission from the 16+ spin gap isomer in 96Cd is presented. The data were obtained from the Rare Isotope Beam Factory, at the RIKEN Nishina Center, using the BigRIPS spectrometer and the EURICA decay station. βp branching ratios for the ground state and 16+ isomer have been extracted along with more precise lifetimes for these states and the lifetime for the ground state decay of 95Cd. Large scale shell model (LSSM) calculations have been performed and WKB estimates made for ℓ=0,2,4 proton emission from three resonance-like states in 96Ag, that are populated by the β decay of the isomer, and the results compared to the new data. The calculations suggest that ℓ=2 proton emission from the resonance states, which reside ∼5 MeV above the proton separation energy, dominates the proton decay. The results highlight the importance of core-excited wavefunction components for the 16+ state.
@article{DAVIES2017474,
abstract = {Abstract The first evidence for β-delayed proton emission from the 16+ spin gap isomer in 96Cd is presented. The data were obtained from the Rare Isotope Beam Factory, at the RIKEN Nishina Center, using the BigRIPS spectrometer and the EURICA decay station. βp branching ratios for the ground state and 16+ isomer have been extracted along with more precise lifetimes for these states and the lifetime for the ground state decay of 95Cd. Large scale shell model (LSSM) calculations have been performed and WKB estimates made for ℓ=0,2,4 proton emission from three resonance-like states in 96Ag, that are populated by the β decay of the isomer, and the results compared to the new data. The calculations suggest that ℓ=2 proton emission from the resonance states, which reside ∼5 MeV above the proton separation energy, dominates the proton decay. The results highlight the importance of core-excited wavefunction components for the 16+ state.},
added-at = {2018-01-20T22:59:19.000+0100},
author = {Davies, P.J. and Grawe, H. and Moschner, K. and Blazhev, A. and Wadsworth, R. and Boutachkov, P. and Ameil, F. and Yagi, A. and Baba, H. and Bäck, T. and Dewald, M. and Doornenbal, P. and Faestermann, T. and Gengelbach, A. and Gerl, J. and Gernhäeuser, R. and Go, S. and Górska, M. and Gregor, E. and Isobe, T. and Jenkins, D.G. and Hotaka, H. and Jolie, J. and Kojouharov, I. and Kurz, N. and Lewitowicz, M. and Lorusso, G. and Maier, L. and Merchan, E. and Naqvi, F. and Nishibata, H. and Nishimura, D. and Nishimura, S. and Nowacki, F. and Pietralla, N. and Schaffner, H. and Söderström, P.-A. and Jung, H.S. and Steiger, K. and Sumikama, T. and Taprogge, J. and Thöle, P. and Warr, N. and Watanabe, H. and Werner, V. and Xu, Z.Y. and Yoshinaga, K. and Zhu, Y.},
biburl = {https://www.bibsonomy.org/bibtex/2ce97ff7091ce1aa5a5b1c0fda971fff9/ikpcologne},
description = {The role of core excitations in the structure and decay of the 16+ spin-gap isomer in 96Cd - ScienceDirect},
doi = {https://doi.org/10.1016/j.physletb.2017.02.013},
interhash = {2ffeb711ba58cecbd4c3f05459004782},
intrahash = {ce97ff7091ce1aa5a5b1c0fda971fff9},
issn = {0370-2693},
journal = {Physics Letters B},
keywords = {blazhev dewald myown},
pages = {474 - 479},
timestamp = {2020-01-13T16:20:30.000+0100},
title = {The role of core excitations in the structure and decay of the 16+ spin-gap isomer in 96Cd},
url = {http://www.sciencedirect.com/science/article/pii/S037026931730103X},
volume = 767,
year = 2017
}