http://repository.iitr.ac.in/handle/123456789/14038| Title: | Level structure above the 17+ isomeric state in Tm83 69152 |
| Authors: | Nara Singh B.S. Cullen D.M. Taylor M.J. Srivastava P.C. Van Isacker P. Beeke O. Dodson B. Scholey C. O'Donell D. Jakobson U. Grahn T. Greenlees P.T. Jones P.M. Julin R. Khan S. Leino M. Leppänen A.-P. Eeckhaudt S. Mäntyniemi K. Pakarinen J. Peura P. Rahkila P. Sarén J. Sorri J. Uusitalo J. Venhart M. |
| Published in: | Physical Review C |
| Abstract: | Excited states above the 17+ isomeric state in the proton-rich nucleus Tm152 were established by employing the recoil-isomer tagging technique. Data were collected using the JUROGAM gamma-ray array and the GREAT spectrometer together with the recoil ion transport unit (RITU) gas-filled recoil separator and analyzed to identify the prompt and delayed γ decays from the levels in Tm152. Shell-model calculations, either in a large valence space or in a reduced model space with five protons in the π0h11/2 orbital and one neutron in the ν1f7/2 orbital, agree with the observed energies of the yrast levels up to angular momentum J=21. The observation of near degeneracies in the energy spectrum can be attributed to specific components of the proton-neutron interaction. The isomeric decay of the 17+ level is not reproduced in the shell-model calculations as it arises from a delicate balance between hindrance due to seniority selection rules and enhancement due to configuration mixing. © 2018 American Physical Society. |
| Citation: | Physical Review C (2018), 98(2): - |
| URI: | https://doi.org/10.1103/PhysRevC.98.024319 http://repository.iitr.ac.in/handle/123456789/14038 |
| Issue Date: | 2018 |
| Publisher: | American Physical Society |
| ISSN: | 24699985 |
| Author Scopus IDs: | 8433340600 57200809472 35187756500 57208202387 7004548277 57203727408 57203725407 6602192320 56422359700 57203728986 56235469900 7004645153 7408263129 22961721100 35217789000 7004388718 8409008400 7801627777 26221849900 6602719289 7003823736 7006100073 9846814400 22958805900 7006528106 14219767000 |
| Author Affiliations: | Nara Singh, B.S., Schuster Building, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, United Kingdom, School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, United Kingdom Cullen, D.M., Schuster Building, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, United Kingdom Taylor, M.J., Schuster Building, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, United Kingdom, Division of Cancer Sciences, Univserity of Manchester, Manchester, M13 9PL, United Kingdom Srivastava, P.C., Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, Boulevard Henri Becquerel, Caen, F-14076, France, Department of Physics, Indian Institute of Technology Roorkee, Roorkee, 247 667, India Van Isacker, P., Grand Accélérateur National d'Ions Lourds, CEA/DRF-CNRS/IN2P3, Boulevard Henri Becquerel, Caen, F-14076, France Beeke, O., Schuster Building, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, United Kingdom Dodson, B., Schuster Building, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, United Kingdom Scholey, C., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland O'Donell, D., School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, United Kingdom Jakobson, U., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland, Department of Chemistry-Radiochemistry, University of Helsinki, P.O. Box 55FI-00014, Finland Grahn, T., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland Greenlees, P.T., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland Jones, P.M., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland, Department of Nuclear Physics, IThemba Laboratory for Accelerator Based Sciences, P.O. Box 722, Somerset West, 7129, South Africa Julin, R., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland Khan, S., Schuster Building, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, United Kingdom Leino, M., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland Leppänen, A.-P., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland, STUK, Radiation and Nuclear Safety Authority, Finland Eeckhaudt, S., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland Mäntyniemi, K., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland Pakarinen, J., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland Peura, P., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland, Helsinki Institute of Physics, University of HelsinkiFI-00014, Finland Rahkila, P., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland Sarén, J., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland Sorri, J., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland, University of Oulu, Sodankylä Geophysical Observatory, Tähteläntie 62, Sodankylä, FI-99600, Finland Uusitalo, J., University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35FI-40014, Finland Venhart, M., Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, 845 11, Slovakia |
| Funding Details: | This work was supported by the EU 7th Framework Programme, Integrating Activities Transnational Access, Project No. 262010 ENSAR, and by the Academy of Finland under the Finnish Centre of Excellence Programme (Nuclear and Accelerator Based Physics Programme at JYFL). The authors acknowledge GAMMAPOOL support for the JUROGAM detectors and B.S.N.S., D.M.C., M.J.T., S. K., and D.D. acknowledge the support of the Science and Technology Facilities Council, Grant No. ST/L005794/1. M.V. acknowledges the support of the Slovak Research and Development Agency under Contract No. APVV-15-0225 and the Slovak Grant Agency VEGA (Contract No. 2/0129/17). The theoretical work was supported by the Sandwich PhD scholarship programme 2008-09 from Embassy of France in India. |
| Appears in Collections: | Journal Publications [PH] |
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