Beta Decay of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">O</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>19</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math> to the <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">½</mi></mrow><mrow><mo>−</mo></mrow></msup></mrow></math> State of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">F</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>19</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>

John C. Cooper; Bernd Crasemann

doi:10.1103/PhysRevC.2.451

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Beta Decay of ${}^{19}O$ to the $½^{-}$ State of ${}^{19}F$

John C. Cooper and Bernd Crasemann

Department of Physics, University of Oregon, Eugene, Oregon 97403

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Phys. Rev. C 2, 451 – Published 1 August, 1970

DOI: https://doi.org/10.1103/PhysRevC.2.451

Abstract

The intensity of the unique first-forbidden 4.708-MeV outer branch of the ${}^{19}O$ $β$ spectrum, leading to the 110-keV $½^{-}$ hole state in ${}^{19}F$ , has been determined as $({4.8}_{- 3.3}^{+ 1.2}) \times 10^{- 4}$ per ${}^{19}O$ decay. Consequently, the comparative half-life is $f_{1} t = ({1.5}_{- 0.3}^{+ 3.1}) \times 10^{10}$ sec, and the strength of the transition is ${〈 G_{1} 〉}^{2} = {0.13}_{- 0.09}^{+ 0.03} F^{2}$ . This result was found from the analysis of $β - γ$ coincidence spectra obtained from reactor-irradiated water samples that had been enriched in ${}^{18}O$ . An upper limit of 6 × $10^{- 4}$ is set on the branching of the 197-keV level decay in ${}^{19}F$ through the 110-keV state. The results can be used to infer the extent of wave-function admixture (core excitation) in the ground state of ${}^{19}O$ .

References (23)

R. D. Lawson, private communication
S. Cohen and R. D. Lawson, Phys. Letters 17, 299 (1965)
M. S. Freedman, F. T. Porter, and F. Wagner, Jr., Phys. Rev. 140, B563 (1965)
V. O. Kostroun, P. Venugopala Rao, and B. Crasemann, Phys. Rev. 152, 1010 (1966)
M. S. Freedman, F. T. Porter, and F. Wagner, Phys. Rev. 152, 1005 (1966)
H. J. Fischbeck, Phys. Rev. 173, 1078 (1968)
G. E. Brown, in Comptes Rendus du Congrès International de Physique Nucléaire, Paris, 1964, edited by M. P. Gugenberger (Éditions du Centre National de la Recherche Scientifique, Paris, 1964), Vol. 1, p. 143
D. E. Alburger, A. Gallmann, and D. H. Wilkinson, Phys. Rev. 116, 939 (1959)
J. W. Olness and D. H. Wilkinson, Phys. Rev. 141, 966 (1966)
J. A. Becker, J. W. Olness, and D. H. Wilkinson, Phys. Rev. 155, 1089 (1967)
Omitted endnote
T. Lauritsen and F. Ajzenberg-Selove, in Nuclear Data Sheets, compiled by K. Way (Printing and Publishing Office, National Academy of Sciences — National Research Council, Washington, D. C., 1962)
M. E. Rose, Internal Conversion Coefficients (North-Holland Publishing Company, Amsterdam, The Netherlands, 1958)
E. K. Warburton, W. R. Harris, and D. E. Alburger, Phys. Rev. 175, 1275 (1968)
D. E. Alburger, private communication
E. J. Konopinski, The Theory of Beta Radioactivity (Oxford University Press, New York, 1966), Sec. 7.3
E. J. Konopinski and M. E. Rose, in Alpha-, Beta-, and Gamma-Ray Spectroscopy, edited by K. Siegbahn (North-Holland Publishing Company, Amsterdam, The Netherlands, 1965), Vol. II, Chapter XXIII, Sec. 5
J. B. McGrory, Phys. Letters 31B, 339 (1970)
A. deShalit and I. Talmi, Nuclear Shell Theory (Academic Press Inc., New York, 1963)
A. Zuker, B. Buck, and J. B. McGrory, Phys. Rev. Letters 21, 39 (1968)
A. Zuker, B. Buck, and J. B. McGrory, in Proceedings of the International Conference on Properties of Nuclear States, Montreal, Canada, 1969 (Presses de l' Université de Montréal, Montréal, Canada, 1969), p. 719
[18]
J. B. McGrory, private communication

[c1] R. D. Lawson, private communication

[c2] S. Cohen and R. D. Lawson, Phys. Letters 17, 299 (1965)

[c3] M. S. Freedman, F. T. Porter, and F. Wagner, Jr., Phys. Rev. 140, B563 (1965)

[c4] V. O. Kostroun, P. Venugopala Rao, and B. Crasemann, Phys. Rev. 152, 1010 (1966)

[c5] M. S. Freedman, F. T. Porter, and F. Wagner, Phys. Rev. 152, 1005 (1966)

[c6] H. J. Fischbeck, Phys. Rev. 173, 1078 (1968)

[c7] G. E. Brown, in Comptes Rendus du Congrès International de Physique Nucléaire, Paris, 1964, edited by M. P. Gugenberger (Éditions du Centre National de la Recherche Scientifique, Paris, 1964), Vol. 1, p. 143

[c8] D. E. Alburger, A. Gallmann, and D. H. Wilkinson, Phys. Rev. 116, 939 (1959)

[c9] J. W. Olness and D. H. Wilkinson, Phys. Rev. 141, 966 (1966)

[c10] J. A. Becker, J. W. Olness, and D. H. Wilkinson, Phys. Rev. 155, 1089 (1967)

[c11] Omitted endnote

[c12] T. Lauritsen and F. Ajzenberg-Selove, in Nuclear Data Sheets, compiled by K. Way (Printing and Publishing Office, National Academy of Sciences — National Research Council, Washington, D. C., 1962)

[c13] M. E. Rose, Internal Conversion Coefficients (North-Holland Publishing Company, Amsterdam, The Netherlands, 1958)

[c14] E. K. Warburton, W. R. Harris, and D. E. Alburger, Phys. Rev. 175, 1275 (1968)

[c15] D. E. Alburger, private communication

[c16] E. J. Konopinski, The Theory of Beta Radioactivity (Oxford University Press, New York, 1966), Sec. 7.3

[c17] E. J. Konopinski and M. E. Rose, in Alpha-, Beta-, and Gamma-Ray Spectroscopy, edited by K. Siegbahn (North-Holland Publishing Company, Amsterdam, The Netherlands, 1965), Vol. II, Chapter XXIII, Sec. 5

[c18] J. B. McGrory, Phys. Letters 31B, 339 (1970)

[c19] A. deShalit and I. Talmi, Nuclear Shell Theory (Academic Press Inc., New York, 1963)

[c20] A. Zuker, B. Buck, and J. B. McGrory, Phys. Rev. Letters 21, 39 (1968)

[c21] A. Zuker, B. Buck, and J. B. McGrory, in Proceedings of the International Conference on Properties of Nuclear States, Montreal, Canada, 1969 (Presses de l' Université de Montréal, Montréal, Canada, 1969), p. 719

[c22] [18]

[c23] J. B. McGrory, private communication

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Beta Decay of ${}^{19}O$ to the $½^{-}$ State of ${}^{19}F$

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Beta Decay of O19 to the ½− State of F19

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References (23)

Beta Decay of ${}^{19}O$ to the $½^{-}$ State of ${}^{19}F$