Structure in β-delayed proton spectra of N=81 precursors

K. S. Tothy, Y. A. Ellis-Akovali, J. M. Nitschke, P. A. Wilmarth, P. K. Lemmertz, D. M. Moltz, F. T. Avignone

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Intense peaks, superposed on a structureless spectrum, were observed in 151Yb β-delayed proton decay. It is shown that the peak and statistical protons follow the decay of the s 1 2 groundand h 11 2 isomeric states in 151Yb, respectively. It is concluded that the peaks, also seen in 147Dy and 149Er decays, are due to a low density of 1 2 and 3 2 levels at ≈ 4.5 MeV in the N = 82 daughters.

Original languageEnglish (US)
Pages (from-to)150-154
Number of pages5
JournalPhysics Letters B
Issue number2-3
StatePublished - Oct 2 1986

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Tothy, K. S., Ellis-Akovali, Y. A., Nitschke, J. M., Wilmarth, P. A., Lemmertz, P. K., Moltz, D. M., & Avignone, F. T. (1986). Structure in β-delayed proton spectra of N=81 precursors. Physics Letters B, 178(2-3), 150-154.