Experimental Evidence for the Fermi Interaction in the <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>β</mi></math> Decay of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn>14</mn></mrow></msup></mrow></math> and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">C</mi></mrow><mrow><mn>10</mn></mrow></msup></mrow></math>

R. Sherr; J. B. Gerhart

doi:10.1103/PhysRev.91.909

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Experimental Evidence for the Fermi Interaction in the $β$ Decay of $O^{14}$ and $C^{10}$

R. Sherr and J. B. Gerhart

Princeton University, Princeton, New Jersey

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Phys. Rev. 91, 909 – Published 15 August, 1953

DOI: https://doi.org/10.1103/PhysRev.91.909

Abstract

The $γ$ -ray spectra of $O^{14}$ and $C^{10}$ have been investigated with a NaI scintillation spectrometer. A value of 2.30±0.03 Mev was found for the $O^{14}$ nuclear $γ$ ray. $C^{10}$ has two $γ$ rays with energies 723±15 and 1033±30 kev; the number of quanta per disintegration are 0.99±0.08 and 1.65±0.20× $10^{- 2}$ , respectively. The 1033-kev $γ$ ray is associated with a weak positron transition to the 1.74-Mev level in $B^{10}$ . There are less than $10^{- 3}$ transitions per disintegration to the 2.15-Mev level of $B^{10}$ . By combining our results with those of heavy particle reactions and using the predictions of the charge multiplet theory on the energies of the analog states, we conclude that the $O^{14}$ decay and the weak $C^{10}$ branch to the 1.74-Mev level of $B^{10}$ are allowed favored 0→0 (no) transitions. From the $C^{10}$ data we find that the ratio of the Fermi to the Gamow-Teller interactions constants ( $\frac{{G_{F}}^{2}}{{G_{GT}}^{2}}$ ) is ${0.79}_{- 0.13}^{+ 0.27}$ , if one assumes $L - S$ coupling, and ${0.44}_{- 0.07}^{+ 0.15}$ for $j - j$ coupling.

References (33)

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A. Feingold and E. P. Wigner (unpublished communication) C. Wu, Revs. Modern Phys. 22, 386 (1950)
W. F. Hornyak et al., Revs. Modern Phys. 22, 291 (1950)
F. Ajzenberg and T. Lauritsen, Revs. Modern Phys. 24, 321 (1952)
W. W. Bell, Senior thesis, Princeton University, 1951 (unpublished)
R. G. Thomas and T. Lauritsen, Phys. Rev. 88, 969 (1952)
E. Feenberg and G. Goertzel, Phys. Rev. 70, 597 (1946) E. Feenberg, Nuclear Physics Lecture Notes (unpublished)
Burrows, Powell, and Rotblat, Proc. Roy. Soc. (London) 209, 478 (1951) A. Ashmore and J. F. Raffle, Proc. Phys. Soc. (London) A64, 754 (1951) Van de Graaf, Sperduto, Buechner, and Enge, Phys. Rev. 86, 966 (1952)
Bockelman, Browne, Sperduto, and Buechner, Phys. Rev. 90, 340 (1953) Browne, Bockelman, Buechner, and Sperduto, 90, 340 (1953)
R. F. Adair, Phys. Rev. 87, 1041 (1952)
L. A. Radicati, Proc. Phys. Soc. (London) A66, 139 (1953)
N. M. Kroll and L. L. Foldy, Phys. Rev. 88, 1177 (1952)
F. Ajzenberg, Phys. Rev. 82, 43 (1951)
R. Hofstadter and J. A. McIntyre, Phys. Rev. 78, 617 (1950) ibid.80, 631 (1950)
Rasmussen, Hornyak, and Lauritsen, Phys. Rev. 76, 581 (1949)
F. H. Schmidt and G. L. Kaister, Phys. Rev. 86, 632 (1952) J. M. LeBlanc et al., 89, 907 (1953)
D. E. Alburger, Phys. Rev. 83, 184 (1951)
G. Schrank and J. R. Richardson, Phys. Rev. 86, 248 (1952)
H. B. Willard et al., Phys. Rev. 85, 849 (1952)
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O. Kofoed-Hansen and A. Winther, Phys. Rev. 86, 428 (1952)
R. Nataf and R. Bouchez, Phys. Rev. 87, 155 (1952)
S. A. Moszkowski, Phys. Rev. 82, 118 (1951)
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[c1] Sherr, Muether, and White, Phys. Rev. 75, 282 (1949)

[c2] A. Feingold and E. P. Wigner (unpublished communication) C. Wu, Revs. Modern Phys. 22, 386 (1950)

[c3] W. F. Hornyak et al., Revs. Modern Phys. 22, 291 (1950)

[c4] F. Ajzenberg and T. Lauritsen, Revs. Modern Phys. 24, 321 (1952)

[c5] W. W. Bell, Senior thesis, Princeton University, 1951 (unpublished)

[c6] R. G. Thomas and T. Lauritsen, Phys. Rev. 88, 969 (1952)

[c7] E. Feenberg and G. Goertzel, Phys. Rev. 70, 597 (1946) E. Feenberg, Nuclear Physics Lecture Notes (unpublished)

[c8] Burrows, Powell, and Rotblat, Proc. Roy. Soc. (London) 209, 478 (1951) A. Ashmore and J. F. Raffle, Proc. Phys. Soc. (London) A64, 754 (1951) Van de Graaf, Sperduto, Buechner, and Enge, Phys. Rev. 86, 966 (1952)

[c9] Bockelman, Browne, Sperduto, and Buechner, Phys. Rev. 90, 340 (1953) Browne, Bockelman, Buechner, and Sperduto, 90, 340 (1953)

[c10] R. F. Adair, Phys. Rev. 87, 1041 (1952)

[c11] L. A. Radicati, Proc. Phys. Soc. (London) A66, 139 (1953)

[c12] N. M. Kroll and L. L. Foldy, Phys. Rev. 88, 1177 (1952)

[c13] F. Ajzenberg, Phys. Rev. 82, 43 (1951)

[c14] R. Hofstadter and J. A. McIntyre, Phys. Rev. 78, 617 (1950) ibid.80, 631 (1950)

[c15] Rasmussen, Hornyak, and Lauritsen, Phys. Rev. 76, 581 (1949)

[c16] F. H. Schmidt and G. L. Kaister, Phys. Rev. 86, 632 (1952) J. M. LeBlanc et al., 89, 907 (1953)

[c17] D. E. Alburger, Phys. Rev. 83, 184 (1951)

[c18] G. Schrank and J. R. Richardson, Phys. Rev. 86, 248 (1952)

[c19] H. B. Willard et al., Phys. Rev. 85, 849 (1952)

[c20] E. Feenberg and G. Trigg, Revs. Modern Phys. 22, 399 (1950) A. Feingold (privately circulated)

[c21] F. Ajzenberg, Phys. Rev. 88, 298 (1952)

[c22] M. Goldhaber and A. W. Sunyar, Phys. Rev. 83, 906 (1951)

[c23] V. F. Weisskopf, Phys. Rev. 83, 1073 (1951) V. F. Weisskopf and J. M. Blatt, Theoretical Nuclear Physics (John Wiley and Sons, Inc., New York, 1952), p. 627

[c24] Gordy, Ring, and Burg, Phys. Rev. 74, 1191 (1948)

[c25] E. P. Wigner, Phys. Rev. 56, 519 (1939) E. P. WignerLecture Notes, University of Wisconsin, 1951 (unpublished)

[c26] G. L. Trigg, Phys. Rev. 86, 506 (1952)

[c27] O. Kofoed-Hansen and A. Winther, Phys. Rev. 86, 428 (1952)

[c28] R. Nataf and R. Bouchez, Phys. Rev. 87, 155 (1952)

[c29] S. A. Moszkowski, Phys. Rev. 82, 118 (1951)

[c30] Dewan, Pepper, Allen, and Almquist, Phys. Rev. 86, 416 (1952)

[c31] Wu, Rustad, Perez-Mendez, and Lidofsky, Phys. Rev. 87, 1140 (1952)

[c32] E. J. Konopinski and L. M. Langer, Reviews of Nuclear Science (Annual Reviews, Inc., Stanford, 1953), Vol. 2, p. 261

[c33] J. M. Blatt, Phys. Rev. 89, 83 (1953)

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Experimental Evidence for the Fermi Interaction in the $β$ Decay of $O^{14}$ and $C^{10}$

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Experimental Evidence for the Fermi Interaction in the β Decay of O14 and C10

Abstract

References (33)

Experimental Evidence for the Fermi Interaction in the $β$ Decay of $O^{14}$ and $C^{10}$