Spin-dependent effects in heavy-ion reactions

B. F. Bayman; A. Dudek-Ellis; P. J. Ellis

doi:10.1016/0375-9474(78)90134-3

Spin-dependent effects in heavy-ion reactions

B. F. Bayman, A. Dudek-Ellis, P. J. Ellis

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

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Abstract

The ⁴⁰Ca(¹³C, ¹⁴N)³⁹K reaction at 60 and 68 MeV has been investigated in the no-recoil approximation to the DWBA. Reorientation effects arising from the quadrupole moments of ¹⁴N and ³⁹K were found to be small. The use of spin-orbit components in the optical potentials was found to shift the phase of the angular distribution into agreement with experiment, while maintaining a fit to the elastic data. This was understood from a generalization of the Strutinsky model. For the ⁴⁰Ca(¹³C, ¹²C)⁴¹Ca reaction at 60 and 68 MeV a smaller shift in phase was obtained which was desirable, but the damping of the magnitude of the oscillations was disturbing.

Original language	English (US)
Pages (from-to)	141-158
Number of pages	18
Journal	Nuclear Physics, Section A
Volume	301
Issue number	1
DOIs	https://doi.org/10.1016/0375-9474(78)90134-3
State	Published - May 22 1978

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It therefore still seems worthwhile to pursue alternative explanations for the data and here we shall concentrate on spin-dependent effects. Firstly, we note that both "N and 39K possess sizeable quadrupole moments. The optical potential should therefore be deformed, which gives rise to non-spherical reorientation terms. We t Work supported in part by USERDA Contract No. E(11-1)-1764 .

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title = "Spin-dependent effects in heavy-ion reactions",

abstract = "The 40Ca(13C, 14N)39K reaction at 60 and 68 MeV has been investigated in the no-recoil approximation to the DWBA. Reorientation effects arising from the quadrupole moments of 14N and 39K were found to be small. The use of spin-orbit components in the optical potentials was found to shift the phase of the angular distribution into agreement with experiment, while maintaining a fit to the elastic data. This was understood from a generalization of the Strutinsky model. For the 40Ca(13C, 12C)41Ca reaction at 60 and 68 MeV a smaller shift in phase was obtained which was desirable, but the damping of the magnitude of the oscillations was disturbing.",

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AU - Dudek-Ellis, A.

AU - Ellis, P. J.

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N2 - The 40Ca(13C, 14N)39K reaction at 60 and 68 MeV has been investigated in the no-recoil approximation to the DWBA. Reorientation effects arising from the quadrupole moments of 14N and 39K were found to be small. The use of spin-orbit components in the optical potentials was found to shift the phase of the angular distribution into agreement with experiment, while maintaining a fit to the elastic data. This was understood from a generalization of the Strutinsky model. For the 40Ca(13C, 12C)41Ca reaction at 60 and 68 MeV a smaller shift in phase was obtained which was desirable, but the damping of the magnitude of the oscillations was disturbing.

AB - The 40Ca(13C, 14N)39K reaction at 60 and 68 MeV has been investigated in the no-recoil approximation to the DWBA. Reorientation effects arising from the quadrupole moments of 14N and 39K were found to be small. The use of spin-orbit components in the optical potentials was found to shift the phase of the angular distribution into agreement with experiment, while maintaining a fit to the elastic data. This was understood from a generalization of the Strutinsky model. For the 40Ca(13C, 12C)41Ca reaction at 60 and 68 MeV a smaller shift in phase was obtained which was desirable, but the damping of the magnitude of the oscillations was disturbing.

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Spin-dependent effects in heavy-ion reactions

Abstract

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