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Title: New yrast and non-yrast states in I 136 and medium-spin structure of I 136 and Xe 136 : Roles of the proton d 5 / 2 and the neutron h 9 / 2 orbitals beyond Sn 132

Abstract

In this article we report on the observation of new yrast and non-yrast states in I-136, populated in the prompt-y spectroscopy EXILL campaign at the ILL using both U-235(n,f) and Pu-241(n,f) reactions. We propose an extension of the level scheme and interpretation of the new spectroscopic results in comparison to state-of-the-art shell-model calculations. We discuss the role of the proton d(5/2) orbital in the structure of this nucleus with Z = 53 and the energy split between the pi d(5/2) and pi g(7/2) orbitals. We also provide a complete overview of all experimental information about this nucleus and include new data from Cf-252, Cm-248 fission and beta decay of Te-136 to I-136. We give a new interpretation of I-136 and its decay to Xe-136 in terms of the influence of the neutron h(9/2) orbital and the Gamow-Teller strength for N = 83.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Nuclear Physics
OSTI Identifier:
1477734
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 98; Journal Issue: 2; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

Citation Formats

Lozeva, R., Stefanova, E. A., Naïdja, H., Nowacki, F., Rząca-Urban, T., Wisniewski, J., Urban, W., Ahmad, I., Blanc, A., De France, G., Didierjean, F., Duchêne, G., Faust, H., Greene, J. P., Köster, U., Mutti, P., Simpson, G., Smith, A. G., Soldner, T., and Ur, C. A. New yrast and non-yrast states in I136 and medium-spin structure of I136 and Xe136 : Roles of the proton d5/2 and the neutron h9/2 orbitals beyond Sn132. United States: N. p., 2018. Web. doi:10.1103/PhysRevC.98.024323.
Lozeva, R., Stefanova, E. A., Naïdja, H., Nowacki, F., Rząca-Urban, T., Wisniewski, J., Urban, W., Ahmad, I., Blanc, A., De France, G., Didierjean, F., Duchêne, G., Faust, H., Greene, J. P., Köster, U., Mutti, P., Simpson, G., Smith, A. G., Soldner, T., & Ur, C. A. New yrast and non-yrast states in I136 and medium-spin structure of I136 and Xe136 : Roles of the proton d5/2 and the neutron h9/2 orbitals beyond Sn132. United States. doi:10.1103/PhysRevC.98.024323.
Lozeva, R., Stefanova, E. A., Naïdja, H., Nowacki, F., Rząca-Urban, T., Wisniewski, J., Urban, W., Ahmad, I., Blanc, A., De France, G., Didierjean, F., Duchêne, G., Faust, H., Greene, J. P., Köster, U., Mutti, P., Simpson, G., Smith, A. G., Soldner, T., and Ur, C. A. Wed . "New yrast and non-yrast states in I136 and medium-spin structure of I136 and Xe136 : Roles of the proton d5/2 and the neutron h9/2 orbitals beyond Sn132". United States. doi:10.1103/PhysRevC.98.024323.
@article{osti_1477734,
title = {New yrast and non-yrast states in I136 and medium-spin structure of I136 and Xe136 : Roles of the proton d5/2 and the neutron h9/2 orbitals beyond Sn132},
author = {Lozeva, R. and Stefanova, E. A. and Naïdja, H. and Nowacki, F. and Rząca-Urban, T. and Wisniewski, J. and Urban, W. and Ahmad, I. and Blanc, A. and De France, G. and Didierjean, F. and Duchêne, G. and Faust, H. and Greene, J. P. and Köster, U. and Mutti, P. and Simpson, G. and Smith, A. G. and Soldner, T. and Ur, C. A.},
abstractNote = {In this article we report on the observation of new yrast and non-yrast states in I-136, populated in the prompt-y spectroscopy EXILL campaign at the ILL using both U-235(n,f) and Pu-241(n,f) reactions. We propose an extension of the level scheme and interpretation of the new spectroscopic results in comparison to state-of-the-art shell-model calculations. We discuss the role of the proton d(5/2) orbital in the structure of this nucleus with Z = 53 and the energy split between the pi d(5/2) and pi g(7/2) orbitals. We also provide a complete overview of all experimental information about this nucleus and include new data from Cf-252, Cm-248 fission and beta decay of Te-136 to I-136. We give a new interpretation of I-136 and its decay to Xe-136 in terms of the influence of the neutron h(9/2) orbital and the Gamow-Teller strength for N = 83.},
doi = {10.1103/PhysRevC.98.024323},
journal = {Physical Review C},
issn = {2469-9985},
number = 2,
volume = 98,
place = {United States},
year = {2018},
month = {8}
}

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