Letter | Published:

Formation of Helium of Mass 3 in an Excited State

Nature volume 143, page 681 (22 April 1939) | Download Citation

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Abstract

AN excited state of helium of mass 3 (3He) has been previously suggested by me to explain a second low-energy group of neutrons from the deuteron-deuterium reaction1. Since present theory does not predict such an excited state2 in 3He, it is important to establish definitely whether such a state actually exists. This note gives the results of some cloud chamber experiments which were made in order to investigate this point.

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References

  1. 1.

    , Phys. Rev., 52, 685 (1937): 53, 711 (1938). Also see , , and , Helv. phys. Acta, 11, 245 (1938) and , and , Phys. Rev., in the Press.

  2. 2.

    , Phys. Rev., 53, 875 (1938); , Phys. Rev., 54, 92 (1938).

  3. 3.

    and , Rev. Mod. Phys., 8, 117 (1936); and , Phys. Rev., 55, 131 (1939).

  4. 4.

    and , Naturwiss., 26, 106 (1938); , Phys. Rev., 54, 308 (1938); , and , Proc. Physico-Math. Soc. Japan, 21, 20 (1939).

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Author information

Affiliations

  1. Cavendish Laboratory, Cambridge.

    • T. W. BONNER

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DOI

https://doi.org/10.1038/143681b0

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