Spectroscopy of 193Bi

A. Herzáň; S. Juutinen; T. Grahn; P.T. Greenlees; K. Hauschild; U. Jakobsson; P. Jones; R. Julin; S. Ketelhut; M. Leino; A. Lopez-Martens; P. Nieminen; M. Nyman; P. Peura; P. Rahkila; S. Rinta-Antila; P. Ruotsalainen; M. Sandzelius; J. Sarén; C. Scholey; J. Sorri; J. Uusitalo

doi:10.1051/epjconf/20146602047

All issues

Volume 66 (2014)

EPJ Web of Conferences, 66 (2014) 02047

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 66, 2014 INPC 2013 – International Nuclear Physics Conference


Article Number		02047
Number of page(s)		4
Section		Nuclear Structure
DOI		https://doi.org/10.1051/epjconf/20146602047
Published online		20 March 2014

EPJ Web of Conferences 66, 02047 (2014)
https://doi.org/10.1051/epjconf/20146602047

Spectroscopy of ¹⁹³Bi

A. Herzáň¹^a, S. Juutinen¹, T. Grahn¹, P.T. Greenlees¹, K. Hauschild¹^,2, U. Jakobsson¹, P. Jones¹^,3, R. Julin¹, S. Ketelhut¹^,4, M. Leino¹, A. Lopez-Martens¹^,2, P. Nieminen¹, M. Nyman⁵, P. Peura¹, P. Rahkila¹, S. Rinta-Antila¹, P. Ruotsalainen¹, M. Sandzelius¹, J. Sarén¹, C. Scholey¹, J. Sorri¹ and J. Uusitalo¹

¹ Department of Physics, University of Jyväskylä, P.O. Box 35, Jyväskylä FI-40014, Finland
² CSNSM , IN2P3-CNRS, F-91405 Orsay Campus, France
³ iThemba Laboratory for Accelerator Based Sciences, P.O. Box 722, 7129 Somerset West, South Africa
⁴ TRIUMF, Westbrook Mall, Vancouver, BC, V6T 2A3, Canada
⁵ European Commission, Joint Research Centre, IRMM, Retieseweg 111, B-2440 Geel, Belgium

^a. e-mail: andrej.a.herzan@jyu.fi

Published online: 20 March 2014

Abstract

An experiment aiming to study the shape coexistence in ¹⁹³Bi has been performed at the Accelerator laboratory of the University of Jyväskylä, Finland (JYFL). Many new states have been found, hugely extending the previously known level scheme of ¹⁹³Bi. The $I^{π} = {\frac{29}{2}}^{+}$ ${I^\pi } = {{{29} \over 2}^ + }$ member of the πi_13/2 band de-excites also to the previously, only tentatively placed long-lived isomeric state. This link determines the energy of the isomeric state to be 2260(1) keV and suggests a spin and parity of $({\frac{27}{2}}^{+})$ $\left( {{{{{27} \over 2}}^ + }} \right)$ . The half-life of the isomeric state was measured to be 84.4(6) µs. A level structure on top of this isomeric state was constructed. However, transition directly depopulating this state could not be identified. A superdeformed band almost identical to that present in the neighboring isotope ¹⁹¹Bi has been identified.

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