Isospin Conservation in the Reaction <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">C</mi></mrow><mrow><mn>12</mn></mrow></msup></mrow><mo>(</mo><mi>α</mi><mo>,</mo><mi> </mi><mi>d</mi><mo>)</mo><mrow><msup><mrow><mi mathvariant="normal">N</mi></mrow><mrow><mn>14</mn></mrow></msup></mrow></math></span>

C. D. Zafiratos; J. S. Lilley; F. W. Slee

doi:10.1103/PhysRev.154.887

Isospin Conservation in the Reaction $C^{12} (α, d) N^{14}$

C. D. Zafiratos, J. S. Lilley, and F. W. Slee

Phys. Rev. 154, 887 – Published 20 February 1967

Abstract

Cross sections for the formation of 24 states between 0 and 13-MeV excitation in $N^{14}$ via the $C^{12} (α, d) N^{14}$ reaction were measured. Six $T = 1$ levels could have been observed if the $Δ T = 0$ selection rule for this reaction had been violated. None of these $T = 1$ levels were observed to be excited. From the upper limits on their cross sections, isospin impurities in the wave functions of the 8.06-, 9.51-, and 10.43-MeV $T = 1$ levels were deduced to be less than 50, 15, and 24%, respectively. These experimental upper limits are still some-what larger than crude theoretical estimates of the isospin mixing induced by the Coulomb interaction.

Received 6 September 1966

DOI:https://doi.org/10.1103/PhysRev.154.887

Authors & Affiliations

C. D. Zafiratos

Department of Physics, Oregon State University, Corvallis, Oregon

J. S. Lilley^* and F. W. Slee^†

Department of Physics, University of Washington, Seattle, Washington

^*Present address: School of Physics, University of Minnesota, Minneapolis, Minnesota.
^†Present address: Department of Physics, University of Puget Sound, Tacoma, Washington.

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Vol. 154, Iss. 4 — February 1967

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