Note on the Parities of the 7.97- to 8.197-MeV States in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">O</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>17</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span> and the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">C</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>13</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow><mo>(</mo><mi>α</mi><mo>,</mo><mi>n</mi><mo>)</mo><mrow><mmultiscripts><mrow><mi mathvariant="normal">O</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>16</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span> Reaction as a Source of Polarized Neutrons

C. E. Busch; T. R. Donoghue; J. A. Keane; H. Paetz gen. Schieck; R. G. Seyler

doi:10.1103/PhysRevC.8.848

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Note on the Parities of the 7.97- to 8.197-MeV States in ${}^{17}O$ and the ${}^{13}C (α, n) {}^{16}O$ Reaction as a Source of Polarized Neutrons

C. E. Busch^*, T. R. Donoghue, J. A. Keane^†, H. Paetz gen. Schieck^‡, and R. G. Seyler

Department of Physics, The Ohio State University, Columbus, Ohio 43210

^*Present address: University of North Carolina, Chapel Hill, North Carolina 27514.
^†Present address: St. Thomas Aquinas College, Sparkill, New York 10976.
^‡Present address: University of Köln, West Germany.

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Phys. Rev. C 8, 848 – Published 1 August, 1973

DOI: https://doi.org/10.1103/PhysRevC.8.848

Abstract

We have measured the angular distributions of the neutron polarization for the ${}^{13}C (α, n)$ reaction at $E_{α} = 2.075, 2.25, and 2.43$ MeV to determine $J^{π}$ assignments for states in ${}^{17}O$ at 7.97, 8.07, and 8.197 MeV. Our analysis of $σ (θ)$ and $P (θ)$ data shows that the parity assignments reported by Schölermann for these states are ambiguous due to the spin and parity structure of the ${}^{13}C (α, n) {}^{16}O$ reaction. The usefulness of this reaction as a source of polarized neutrons is also discussed briefly.

References (14)

W. L. Baker, C. E. Busch, J. A. Keane, and T. R. Donoghue, Phys. Rev. C 3, 494 (1971)
W. L. Baker, Ph.D. dissertation, The Ohio State University, 1969 (unpublished)
H. Schölermann, Z. Phys. 220, 211 (1969)
R. B. Walton, J. D. Clement, and F. Boreli, Phys. Rev. 107, 1065 (1957)
C. H. Johnson and J. L. Fowler, Phys. Rev. 162, 890 (1967)
Omitted endnote
R. G. Seyler, in Polarization Phenomena in Nuclear Reactions, edited by H. H. Barschall and W. Haeberli (University of Wisconsin Press, Madison, Wisconsin, 1971), p. 624
G. M. Hale, P. G. Young, and D. G. Foster, Jr., Bull. Am. Phys. Soc. 17, 915 (1972)
G. M. Hale et al., private communication
C. H. Johnson, Phys. Rev. C 7, 561 (1973)
R. L. Walter, in Polarization Phenomena in Nuclear Reactions, edited by H. H. Barschall amd W. Haeberli (University of Wisconsin Press, Madison, Wisconsin, 1971), p. 317
T. R. Donoghue, W. L. Baker, P. L. Beach, D. C. De Martini, and C. R. Soltesz, Phys. Rev. 173, 952 (1968)
G. L. Morgan, R. L. Walter, C. R. Soltesz, and T. R. Donoghue, Phys. Rev. 150, 830 (1966)
D. C. De Martini, C. R. Soltesz, and T. R. Donoghue, Phys. Rev. C 7, 1824 (1973)

[c1] W. L. Baker, C. E. Busch, J. A. Keane, and T. R. Donoghue, Phys. Rev. C 3, 494 (1971)

[c2] W. L. Baker, Ph.D. dissertation, The Ohio State University, 1969 (unpublished)

[c3] H. Schölermann, Z. Phys. 220, 211 (1969)

[c4] R. B. Walton, J. D. Clement, and F. Boreli, Phys. Rev. 107, 1065 (1957)

[c5] C. H. Johnson and J. L. Fowler, Phys. Rev. 162, 890 (1967)

[c6] Omitted endnote

[c7] R. G. Seyler, in Polarization Phenomena in Nuclear Reactions, edited by H. H. Barschall and W. Haeberli (University of Wisconsin Press, Madison, Wisconsin, 1971), p. 624

[c8] G. M. Hale, P. G. Young, and D. G. Foster, Jr., Bull. Am. Phys. Soc. 17, 915 (1972)

[c9] G. M. Hale et al., private communication

[c10] C. H. Johnson, Phys. Rev. C 7, 561 (1973)

[c11] R. L. Walter, in Polarization Phenomena in Nuclear Reactions, edited by H. H. Barschall amd W. Haeberli (University of Wisconsin Press, Madison, Wisconsin, 1971), p. 317

[c12] T. R. Donoghue, W. L. Baker, P. L. Beach, D. C. De Martini, and C. R. Soltesz, Phys. Rev. 173, 952 (1968)

[c13] G. L. Morgan, R. L. Walter, C. R. Soltesz, and T. R. Donoghue, Phys. Rev. 150, 830 (1966)

[c14] D. C. De Martini, C. R. Soltesz, and T. R. Donoghue, Phys. Rev. C 7, 1824 (1973)

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Note on the Parities of the 7.97- to 8.197-MeV States in ${}^{17}O$ and the ${}^{13}C (α, n) {}^{16}O$ Reaction as a Source of Polarized Neutrons

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Note on the Parities of the 7.97- to 8.197-MeV States in O17 and the C13(α,n)O16 Reaction as a Source of Polarized Neutrons

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References (14)

Note on the Parities of the 7.97- to 8.197-MeV States in ${}^{17}O$ and the ${}^{13}C (α, n) {}^{16}O$ Reaction as a Source of Polarized Neutrons