Search for very long-lived isomers in the hafnium-tungsten region

Zs. Podolyák; P. M. Walker; D. M. Cullen; G. D. Dracoulis; P. Fallon; B. Fairchild; K. Hauschild; A. O. Macchiavelli; D. P. McNabb; A. Savelius; D. Ward; C. Wheldon

doi:10.1103/PhysRevC.62.034303

Search for very long-lived isomers in the hafnium-tungsten region

Zs. Podolyák, P. M. Walker, D. M. Cullen, G. D. Dracoulis, P. Fallon, B. Fairchild, K. Hauschild, A. O. Macchiavelli, D. P. McNabb, A. Savelius, D. Ward, and C. Wheldon

Phys. Rev. C 62, 034303 – Published 3 August 2000

Abstract

Targets of $^{48} Ca$ have been bombarded with $^{134, 136} Xe$ beams as part of a search for long-lived, high-K states in well-deformed nuclei with $A \approx 180.$ Several known isomers were observed by off-line γ-ray detection, and limits have been established for high-K isomer production in various isotopes of hafnium $(A = 175 - 178),$ tantalum $(A = 177 - 181),$ and tungsten $(A = 177 - 181) .$

Received 25 August 1999

DOI:https://doi.org/10.1103/PhysRevC.62.034303

Authors & Affiliations

Zs. Podolyák¹, P. M. Walker¹, D. M. Cullen², G. D. Dracoulis³, P. Fallon⁴, B. Fairchild⁴, K. Hauschild⁵, A. O. Macchiavelli⁴, D. P. McNabb⁵, A. Savelius⁶, D. Ward⁴, and C. Wheldon¹

¹Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
²Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
³Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia
⁴Lawrence Berkeley National Laboratory, Berkeley, California 94720
⁵Lawrence Livermore National Laboratory, Livermore, California 94550
⁶Department of Physics, University of Jyväskylä, Jyväskylä F-40351, Finland

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Vol. 62, Iss. 3 — September 2000

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