Elastic scattering of 60-MeV alpha particles by the even nickel isotopes

D. G. Madland; P. Schwandt; W. T. Sloan; P. Shapiro; P. P. Singh

doi:10.1103/PhysRevC.9.1002

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Elastic scattering of 60-MeV alpha particles by the even nickel isotopes

D. G. Madland, P. Schwandt, and W. T. Sloan

P. Shapiro

P. P. Singh

Physics Department, Indiana University, Bloomington, Indiana 47401

Naval Research Laboratory, Washington, D. C. 20375

Physics Department, Indiana University, Bloomington, Indiana 47401
Naval Research Laboratory, Washington, D. C. 20375

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Phys. Rev. C 9, 1002 – Published 1 March, 1974

DOI: https://doi.org/10.1103/PhysRevC.9.1002

Abstract

An optical-model analysis of the scattering of 60-MeV $α$ particles by ${}^{58}{Ni}$ , ${}^{60}{Ni}$ , ${}^{62}{Ni}$ , and ${}^{64}{Ni}$ has been performed with particular emphasis placed on (1) the significance of the backward-angle data with respect to removal of potential ambiguities and (2) the extent to which $α$ elastic scattering at this energy is sensitive to the interior detail of the potential. In the ${}^{58}{Ni}$ case, six equivalent potentials are found to fit the diffraction scattering region ( $θ < 70^{\circ}$ ), but only two of these simultaneously provide acceptable fits in the backward-angle region. It is shown that the detailed form of the real potential significantly affects the scattering only at distances beyond ∼4 fm. The 60-MeV $α$ probe is not sensitive to the detail of the total potential inside of ∼3 fm in any way that affects the elastic cross section.

[NUCLEAR REACTIONS ${}^{58, 60, 62, 64}{Ni} (α, α)$ , $E = 60$ MeV; ${}^{60}{Ni} (α, α)$ , $E = 75$ MeV; measured $σ (θ)$ ; $θ = 12 - 160^{\circ}$ , enriched targets. Optical-model analysis.]

References (28)

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Omitted endnote
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Omitted endnote
F. D. Becchetti, Jr., and G. W. Greenlees, Phys. Rev. 182, 1190 (1969)
Omitted endnote
Omitted endnote
([10])
Omitted endnote
P. E. Hodgson, The Optical Model of Elastic Scattering (Clarendon Press, London, 1963), Chap. 5
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[c1] G. R. Satchler, Nucl. Phys. 70, 177 (1965)

[c2] L. McFadden and G. R. Satchler, Nucl. Phys. 84, 177 (1966)

[c3] G. Igo, Phys. Rev. Lett. 1, 72 (1958) Phys. Rev. 115, 1665 (1959)

[c4] R. M. Drisko, G. R. Satchler, and R. H. Bassel, Phys. Lett. 5, 347 (1963)

[c5] B. Fernandez and J. S. Blair, Phys. Rev. C 1, 523 (1970)

[c6] D. F. Jackson and C. G. Morgan, Phys. Rev. 175, 1402 (1968)

[c7] G. Hauser, R. Lohken, H. Rebel, G. Schatz, G. W. Schweimer, and J. Specht, Nucl. Phys. A128, 81 (1969)

[c8] S. M. Smith and D. A. Goldberg, Bull Am. Phys. Soc. 17, 591 (1972)

[c9] P. P. Singh, R. E. Malmin, M. High, and D. W. Devins, Phys. Rev. Lett. 23, 1124 (1969)

[c10] D. C. Weisser, J. S. Lilley, R. K. Hobbie, and G. W. Greenlees, Phys. Rev. C 2, 544 (1970)

[c11] P. P. Singh, W. T. Sloan, D. W. Devins, and P. Shapiro, Bull. Am. Phys. Soc. 16, 99 (1971)

[c12] Omitted endnote

[c13] H. W. Broek, J. L. Yntema, B. Buck, and G. R. Satchler, Nucl. Phys. 64, 259 (1965) P. Darriulat, G. Igo, H. G. Pugh, J. M. Meriwether, and S. Yamabe, Phys. Rev. 134, B42 (1964)

[c14] G. T. Eckley, Department of Physics, Indiana University, 1968 (unpublished)

[c15] P. Schwandt, Department of Physics, Indiana University, 1972 (unpublished) G. J. Pyle, University of Minnesota, Williams Laboratory Report No. COO-1265-64, 1968 (unpublished)

[c16] W. T. Sloan, P. Schwandt, D. G. Madland, P. Shapiro, and P. P. Singh, Bull. Am. Phys. Soc. 16, 601 (1971)

[c17] Omitted endnote

[c18] F. D. Becchetti, Jr., and G. W. Greenlees, Phys. Rev. 182, 1190 (1969)

[c19] Omitted endnote

[c20] Omitted endnote

[c21] ([10])

[c22] Omitted endnote

[c23] P. E. Hodgson, The Optical Model of Elastic Scattering (Clarendon Press, London, 1963), Chap. 5

[c24] H. S. Liers, R. N. Boyd, C. H. Poppe, J. A. Sievers, and D. L. Watson, Phys. Rev. C 2, 1399 (1970) W. Makofske, G. W. Greenlees, H. S. Liers, and G. J. Pyle, 5, 750 (1972)

[c25] H. Rebel, R. Loehken, G. W. Schweimer, G. Schatz, and G. Howser, Z. Phys. 256, 258 (1972)

[c26] D. A. Goldberg, S. M. Smith, H. G. Pugh, P. G. Roos, and N. S. Wall, Phys. Rev. C 7, 1938 (1973)

[c27] D. A. Goldberg and S. M. Smith, University of Maryland Technical Report No. 72-119 (unpublished)

[c28] J. N. Simonov, K. O. Terenetskii, and V. V. Tokarerskii, Yad. Fiz. 14, 104 (1971) [transl.: Sov. J. Nucl. Phys. 14, 59 (1972)]

Physical Review C

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Elastic scattering of 60-MeV alpha particles by the even nickel isotopes

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