Single-particle isomeric states in 121Pd and 117Ru

S Lalkovski; A M Bruce; A M Denis Bacelar; M Górska; S Pietri; Zs Podolyák; P Bednarczyk; L Caceres; E Casarejos; I J Cullen; P Doornenbal; G F Farrelly; A B Garnsworthy; H Geissel; W Gelletly; J Gerl; J Grȩbosz; C Hinke; G Ilie; G Jaworski; S Kisyov; I Kojouharov; N Kurz; S Myalski; M Palacz; W Prokopowicz; P H Regan; H Schaffner; S Steer; S Tashenov; P M Walker; H J Wollersheim; M Zhekova

doi:10.1088/1742-6596/366/1/012029

Journal of Physics: Conference Series

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Single-particle isomeric states in ¹²¹Pd and ¹¹⁷Ru

S Lalkovski^1,2, A M Bruce², A M Denis Bacelar², M Górska³, S Pietri^3,4, Zs Podolyák⁴, P Bednarczyk³, L Caceres³, E Casarejos⁵, I J Cullen⁴, P Doornenbal^3,6, G F Farrelly⁴, A B Garnsworthy⁴, H Geissel³, W Gelletly⁴, J Gerl³, J Grȩbosz^3,7, C Hinke⁸, G Ilie^9,10, G Jaworski^11,12, S Kisyov¹, I Kojouharov³, N Kurz³, S Myalski⁷, M Palacz¹², W Prokopowicz³, P H Regan⁴, H Schaffner³, S Steer⁴, S Tashenov³, P M Walker^4,13, H J Wollersheim³ and M Zhekova¹

Published under licence by IOP Publishing Ltd
Journal of Physics: Conference Series, Volume 366, XIX International School on Nuclear Physics, Neutron Physics and Applications (VARNA 2011) 19–25 September 2011, Varna, Bulgaria Citation S Lalkovski et al 2012 J. Phys.: Conf. Ser. 366 012029 DOI 10.1088/1742-6596/366/1/012029

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¹ Faculty of Physics, University of Sofia "St. Kliment Ohridski", Sofia 1164, Bulgaria

² School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4JG, UK

³ Gesellschaft für Schwerionenforschung mbH, Planckstr 1, D-64291 Darmstadt, Germany

⁴ Department of Physics, University of Surrey, Guildford GU2 7XH, UK

⁵ Facultad de Fisica, Universidad de Santiago de Compostela, Santiago de Compostela 15782, Spain

⁶ Institut für Kernphysik, Universität zu Köln, Zülpicher Straße 77, D-50937 Köln, Germany

⁷ Niewodniczański Institute of Nuclear Physics, Polish Academy of Science, ul. Radzikowskiego 152, Krakow 31-342, Poland

⁸ Physik-Department E12, Technische Universität München, D-85748 Garching, Germany

⁹ Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520, USA

¹⁰ National Institute for Physics and Nuclear Engineering, PO Box MG-6, Bucharest, Romania

¹¹ Heavy Ion Laboratory, Warsaw University, ul. Pasteura 5A, 02-093 Warszawa, Poland

¹² Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warszawa, Poland

¹³ CERN, CH1211 Geneva 23, Switzerland

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Abstract

Neutron-rich nuclei were populated in a relativistic fission of ²³⁸U. Gamma-rays with energies of 135 keV and 184 keV were associated with two isomeric states in ¹²¹Pd and ¹¹⁷Ru. Half-lives of 0.63(5) μs and 2.0(3) μs were deduced and the isomeric states were interpreted in terms of prolate deformed single-particle states.

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Single-particle isomeric states in 121Pd and 117Ru

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Abstract

Single-particle isomeric states in ¹²¹Pd and ¹¹⁷Ru