Novel decay modes of high-K isomers

Tunneling in a triaxial landscape

B. Crowell, P. Chowdhury, S. J. Freeman, C. J. Lister, M. P. Carpenter, R. G. Henry, R. V F Janssens, T. L. Khoo, T. Lauritsen, Yun Liang, F. Soramel, I. G. Bearden

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

The nucleus W176 has been studied using the reaction Nd150(30Si,4n), with prompt and delayed γ-γ coincidence techniques. A K=14 isomer (t1/270 ns) is found to exhibit a unique decay pattern, primarily decaying to K=0 states, in contrast to all previously studied high-K isomers. Calculations have been perfomed of both Coriolis mixing and tunneling through a potential barrier in the triaxial degree of freedom to understand these unusual decays. While Coriolis mixing models do not reproduce the variations in the decay patterns in neighboring nuclei, the tunneling calculations are remarkably successful.

Original languageEnglish
Pages (from-to)1164-1167
Number of pages4
JournalPhysical Review Letters
Volume72
Issue number8
DOIs
StatePublished - 1994
Externally publishedYes

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isomers
decay
nuclei
degrees of freedom

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Crowell, B., Chowdhury, P., Freeman, S. J., Lister, C. J., Carpenter, M. P., Henry, R. G., ... Bearden, I. G. (1994). Novel decay modes of high-K isomers: Tunneling in a triaxial landscape. Physical Review Letters, 72(8), 1164-1167. https://doi.org/10.1103/PhysRevLett.72.1164

Novel decay modes of high-K isomers : Tunneling in a triaxial landscape. / Crowell, B.; Chowdhury, P.; Freeman, S. J.; Lister, C. J.; Carpenter, M. P.; Henry, R. G.; Janssens, R. V F; Khoo, T. L.; Lauritsen, T.; Liang, Yun; Soramel, F.; Bearden, I. G.

In: Physical Review Letters, Vol. 72, No. 8, 1994, p. 1164-1167.

Research output: Contribution to journalArticle

Crowell, B, Chowdhury, P, Freeman, SJ, Lister, CJ, Carpenter, MP, Henry, RG, Janssens, RVF, Khoo, TL, Lauritsen, T, Liang, Y, Soramel, F & Bearden, IG 1994, 'Novel decay modes of high-K isomers: Tunneling in a triaxial landscape', Physical Review Letters, vol. 72, no. 8, pp. 1164-1167. https://doi.org/10.1103/PhysRevLett.72.1164
Crowell B, Chowdhury P, Freeman SJ, Lister CJ, Carpenter MP, Henry RG et al. Novel decay modes of high-K isomers: Tunneling in a triaxial landscape. Physical Review Letters. 1994;72(8):1164-1167. https://doi.org/10.1103/PhysRevLett.72.1164
Crowell, B. ; Chowdhury, P. ; Freeman, S. J. ; Lister, C. J. ; Carpenter, M. P. ; Henry, R. G. ; Janssens, R. V F ; Khoo, T. L. ; Lauritsen, T. ; Liang, Yun ; Soramel, F. ; Bearden, I. G. / Novel decay modes of high-K isomers : Tunneling in a triaxial landscape. In: Physical Review Letters. 1994 ; Vol. 72, No. 8. pp. 1164-1167.
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