<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>K</mi></math> Capture of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Be</mi></mrow><mrow><mn>7</mn></mrow></msup></mrow></math> and the Excited State of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Li</mi></mrow><mrow><mn>7</mn></mrow></msup></mrow></math>

R. M. Williamson; H. T. Richards

doi:10.1103/PhysRev.76.614

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$K$ Capture of ${Be}^{7}$ and the Excited State of ${Li}^{7}$

R. M. Williamson and H. T. Richards

University of Wisconsin, Madison, Wisconsin

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Phys. Rev. 76, 614 – Published 1 September, 1949

DOI: https://doi.org/10.1103/PhysRev.76.614

Abstract

The fraction of ${Be}^{7}$ $K$ capture to the 478 kev excited state of ${Li}^{7}$ has been experimentally determined to be 0.107±0.02. The experimental method consisted in measuring the number of ${Be}^{7}$ atoms by counting neutrons from the ${Li}^{7} (pn) {Be}^{7}$ reaction, and in observing the subsequent number of 478 kev gammas by use of a counter calibrated by beta-gamma-coincidences from ${Au}^{198}$ . Implications concerning the character of the 478 kev ${Li}^{7}$ level are discussed.

References (24)

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[c2] E. Konopinski, Rev. Mod. Phys. 15, 209 (1943)

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[c4] Gordy, Ring, and Burg, Phys. Rev. 74, 1191 (1948)

[c5] C. W. Gilbert, Proc. Camb. Phil. Soc. 44, 447 (1948) J. K. Boggild, Kgl. Danske Vid. Sels. Math. Fys. Medd. 23, 4 (1945)

[c6] D. R. Inglis, Phys. Rev. 74, 1876 (1948)

[c7] D. Saxon and R. Heller, Phys. Rev. 75, 909 (1949)

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[c9] E. Jurney, Phys. Rev. 74, 1049 (1948)

[c10] R. Wilkinson and C. Peacock, Phys. Rev. 74, 1250 (1948)

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[c23] Rosenfeld, [17], p. 413

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$K$ Capture of ${Be}^{7}$ and the Excited State of ${Li}^{7}$

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K Capture of Be7 and the Excited State of Li7

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References (24)

$K$ Capture of ${Be}^{7}$ and the Excited State of ${Li}^{7}$