Study of the Matrix Element for <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><mmultiscripts><mrow><mi mathvariant="normal">Ba</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>139</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>, <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ce</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>141</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>, and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Pm</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>148</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math> by the (<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>e</mi><mo>,</mo><mrow><msup><mrow><mi>e</mi></mrow><mrow><mo>′</mo></mrow></msup></mrow><mi>p</mi></math>) Reaction

K. Shoda; A. Suzuki; M. Sugawara; T. Saito; H. Miyase; S. Oikawa; B. N. Sung

doi:10.1103/PhysRevC.3.2006

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Study of the Matrix Element for $β$ Decay of ${}^{139}{Ba}$ , ${}^{141}{Ce}$ , and ${}^{148}{Pm}$ by the ( $e, e^{'} p$ ) Reaction

K. Shoda, A. Suzuki, M. Sugawara, T. Saito, H. Miyase, and S. Oikawa

B. N. Sung

Laboratory of Nuclear Science, Faculty of Science, Tohoku University, Tomizawa, Sendai, Japan

Department of Applied Physics, College of Engineering, Seoul National University, Seoul, Korea

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Phys. Rev. C 3, 2006 – Published 1 May, 1971

DOI: https://doi.org/10.1103/PhysRevC.3.2006

Abstract

The ratio $| \frac{M^{β}}{ξ i \int \vec{r}} |$ for the first-forbidden $β^{-}$ decay has been studied to discuss the composition of $M^{β}$ . Experimental values of $| M^{β} |$ and $| i \int \vec{r} |$ are estimated from $ft$ values and from the $E 1$ matrix element. The latter was obtained from the ( $e, e^{'} p$ ) reaction through the isobaric analog states in ${}^{139}{La}$ , ${}^{141}\Pr$ , and ${}^{148}{Sm}$ . The experimental value of the ratio was compared with the theory using a $j - j$ -coupling shell model. The result shows good agreement for ${}^{141}{Ce}$ but not always good agreement for ${}^{139}{Ba}$ and ${}^{148}{Pm}$ .

References (11)

H. Ejiri, P. Richard, S. Ferguson, R. Heffner, and D. Perry, Nucl. Phys. A128, 388 (1969)
K. Shoda, A. Suzuki, M. Sugawara, T. Saito, H. Miyase, and S. Oikawa, [Phys. Rev. C 3, 2001 (1970)]
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H. F. Shopper, Weak Interactions and Nuclear Beta Decay (North-Holland Publishing Company, Amsterdam The Netherlands, 1966), p. 277
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C. V. K. Baba, G. T. Ewan, and J. F. Suarez, Phys. Letters 3, 232 (1963)
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[c1] H. Ejiri, P. Richard, S. Ferguson, R. Heffner, and D. Perry, Nucl. Phys. A128, 388 (1969)

[c2] K. Shoda, A. Suzuki, M. Sugawara, T. Saito, H. Miyase, and S. Oikawa, [Phys. Rev. C 3, 2001 (1970)]

[c3] M. Morita and R. Morita, Phys. Rev. 109, 2048 (1958) W. Buhring, Nucl. Phys. 40, 472 (1963)

[c4] J. I. Fujita, Phys. Rev. 126, 202 (1962) Progr. Theoret. Phys. (Kyoto) 32, 438 (1964)

[c5] P. Lipnik and J. W. Sunier, Nucl. Phys. 65, 21 (1965)

[c6] L. S. Kisslinger and R. A. Sorensen, Rev. Mod. Phys. 35, 853 (1963)

[c7] M. Rho, Nucl. Phys. 65, 497 (1965)

[c8] H. F. Shopper, Weak Interactions and Nuclear Beta Decay (North-Holland Publishing Company, Amsterdam The Netherlands, 1966), p. 277

[c9] H. Beekhuis and R. J. Van Duinen, Nucl. Phys. A108, 382 (1968)

[c10] C. V. K. Baba, G. T. Ewan, and J. F. Suarez, Phys. Letters 3, 232 (1963)

[c11] T. Ahrens and E. Feenberg, Phys. Rev. 86, 64 (1952)

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Study of the Matrix Element for $β$ Decay of ${}^{139}{Ba}$ , ${}^{141}{Ce}$ , and ${}^{148}{Pm}$ by the ( $e, e^{'} p$ ) Reaction

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Study of the Matrix Element for β Decay of Ba139, Ce141, and Pm148 by the (e,e′p) Reaction

Abstract

References (11)

Study of the Matrix Element for $β$ Decay of ${}^{139}{Ba}$ , ${}^{141}{Ce}$ , and ${}^{148}{Pm}$ by the ( $e, e^{'} p$ ) Reaction