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

doi:10.1016/0370-2693(86)91486-3

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

Biochemistry & Molecular Biology

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

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 language	English (US)
Pages (from-to)	150-154
Number of pages	5
Journal	Physics Letters B
Volume	178
Issue number	2-3
DOIs	https://doi.org/10.1016/0370-2693(86)91486-3
State	Published - Oct 2 1986

ASJC Scopus subject areas

Nuclear and High Energy Physics

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@article{eabcb2cfdb1b4391a6a340d762424e2b,

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

abstract = "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.",

author = "Tothy, {K. S.} and Ellis-Akovali, {Y. A.} and Nitschke, {J. M.} and Wilmarth, {P. A.} and Lemmertz, {P. K.} and Moltz, {D. M.} and Avignone, {F. T.}",

note = "Funding Information: The authors wish to express their gratitude to P. M611er for stimulating discussions and for making available his RPA computer code to calculate fl-decay strength functions. Valuable discussions were also held with G. A. Leander. Oak Ridge National Laboratory is operated by Martin Marietta Energy Systems, Inc. for the US Department of Energy under Contract No. DE-ACO5-840R21400. Work at the Lawrence Berkeley Laboratory is supported by the Director, Office of Energy Research, Division of Nuclear Physics of the Office of High Energy and Nuclear Physics of the US Department of Energy under Contract DE-AC03-76SF00098. Additional support was provided by the US Department of Energy under Contract No. DE-AS09-79ER10434 with the University of South Carolina.",

year = "1986",

month = oct,

day = "2",

doi = "10.1016/0370-2693(86)91486-3",

language = "English (US)",

volume = "178",

pages = "150--154",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "2-3",

}

TY - JOUR

T1 - Structure in β-delayed proton spectra of N=81 precursors

AU - Tothy, K. S.

AU - Ellis-Akovali, Y. A.

AU - Nitschke, J. M.

AU - Wilmarth, P. A.

AU - Lemmertz, P. K.

AU - Moltz, D. M.

AU - Avignone, F. T.

N1 - Funding Information: The authors wish to express their gratitude to P. M611er for stimulating discussions and for making available his RPA computer code to calculate fl-decay strength functions. Valuable discussions were also held with G. A. Leander. Oak Ridge National Laboratory is operated by Martin Marietta Energy Systems, Inc. for the US Department of Energy under Contract No. DE-ACO5-840R21400. Work at the Lawrence Berkeley Laboratory is supported by the Director, Office of Energy Research, Division of Nuclear Physics of the Office of High Energy and Nuclear Physics of the US Department of Energy under Contract DE-AC03-76SF00098. Additional support was provided by the US Department of Energy under Contract No. DE-AS09-79ER10434 with the University of South Carolina.

PY - 1986/10/2

Y1 - 1986/10/2

N2 - 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.

AB - 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.

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VL - 178

SP - 150

EP - 154

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 2-3

ER -