Proton Groups from the Bombardment of Argon by Deuterons

P. W. Davison; J. O. Buchanan; Ernest Pollard

doi:10.1103/PhysRev.76.890

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Proton Groups from the Bombardment of Argon by Deuterons

P. W. Davison^*,‡, J. O. Buchanan^†,‡, and Ernest Pollard

Sloane Physics Laboratory, Yale University, New Haven, Connecticut

^*Now at R.C.A. Laboratories.
^†Now at University of West Virginia.
^‡Assisted by the joint program of ONR and AEC.

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Phys. Rev. 76, 890 – Published 1 October, 1949

DOI: https://doi.org/10.1103/PhysRev.76.890

Abstract

The deuteron bombardment of argon in both ordinary form and with a 26 percent concentration of $A^{36}$ shows the presence of thirteen groups of protons. Correct assignment to isotope can be made for ten of these and probable assignment for the others. The $Q$ -values for the reactions are: $A^{36} (dp) A^{37}$ 6.59; 5.06; 4.92; 4.32; 4.03; 3.13 and 1.58 and $A^{40} (dp) A^{41}$ 3.84; 3.18; 2.63; 2.50; 1.90; 1.57; 1.04; 0.55; 0.15; -0.17. The mass difference $A^{37}$ - $A^{36}$ is 0.99951 and $A^{41}$ - $A^{40}$ is 1.00247. Considering that the nuclei differ by four neutrons there is surprisingly little difference in general level structure. The first excited state of $A^{37}$ is at an unusually high value.

References (3)

W. L. Davidson, Jr., Phys. Rev. 57, 244 (1940)
E. Pollard and P. W. Davison, Phys. Rev. 73, 1241A (1948)
P. W. Davison, Phys. Rev. 75, 757 (1949)

[c1] W. L. Davidson, Jr., Phys. Rev. 57, 244 (1940)

[c2] E. Pollard and P. W. Davison, Phys. Rev. 73, 1241A (1948)

[c3] P. W. Davison, Phys. Rev. 75, 757 (1949)

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Proton Groups from the Bombardment of Argon by Deuterons

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