NEW STRUCTURES IN 178HF AND COULOMB EXCITATION OF ISOMERS-Reference-Cited by-同舟云学术

NEW STRUCTURES IN 178HF AND COULOMB EXCITATION OF ISOMERS

Published:2011-02 Issue:02 Volume:20 Page:474-481
ISSN:0218-3013
Container-title:International Journal of Modern Physics E
language:en
Short-container-title:Int. J. Mod. Phys. E

Author:

HAYES A.B.¹,CLINE D.¹,WU C. Y.²,HURST A.M.²,CARPENTER M.P.³,GREENE J.P.³,JANSSENS R.V.F.³,LAURITSEN T.³,SEWERYNIAK D.³,ZHU S.³,KARAMIAN S.A.⁴,WALKER P.M.⁵,SWAN T.P.D.⁵,RIGBY S.V.⁶,CULLEN D.M.⁷,LUMLEY N.M.⁷,MASON P.⁷,CARROLL J.J.⁸,DETWILER B.⁸,HARLE T.⁸,MILLS I.⁸,TREES G.⁸

Affiliation:

1. Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA

2. Lawrence Livermore National Laboratory, Livermore, California 94550, USA

3. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA

4. Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region, Russia

5. Department of Physics, University of Surrey, Guildford GU2 7XH, UK

6. Department of Physics, University of Liverpool, Liverpool L69 7ZE, UK

7. School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK

8. Department of Physics, Youngstown State University, Youngstown, Ohio 44555, USA

Abstract

A 985 MeV 178 Hf beam was Coulomb excited by a 208 Pb target at the ATLAS accelerator of Argonne National Laboratory. Gammasphere and the CHICO particle detector recorded particle-γ coincidence data. The aim was to populate and determine the mechanism of previously observed Coulomb excitation of the Kπ = 6+ (t1/2 = 77 ns ), 8- (4 s ) and 16+ (31 y ) isomer bands. New rotational bands were identified including an aligned band which appears to mix with the ground-state band (GSB) and the γ-vibrational band above ~ 12 ħ of angular momentum. Newly observed γ-decay transitions into the three isomer bands may elucidate the K-mixing which allows Coulomb excitation of these isomer bands, but direct decays from the GSB into the 16+ isomer band have not yet been confirmed.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218301311017879

Reference6 articles.

1. Isometric trapping following Coulomb excitation of high spin states in 178Hf

2. Coulomb excitation of theKπ=8−isomer inHf178

3. Spin dependence ofKmixing, strong configuration mixing, and electromagnetic properties ofHf178

4. Electromagnetic properties of the rotationally aligned band in162Dy

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