Tensor analyzing powers of the proton continuum spectra from deuteron breakup at 56 MeV

doi:10.1016/0375-9474(83)90351-2

Nuclear Physics A

Volume 408, Issue 1, 24 October 1983, Pages 99-108

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Abstract

Cross sections and tensor analyzing powers, A_xx and A_yy of the continuum spectra in ⁵⁸Ni and ⁹⁰Zr( $d$ , pX) reactions were measured at 56 MeV in the angular range between 6° and 30°. A prominent bump due to deuteron breakup was observed in the proton spectra. The peak energy of the bump is about one half of the incident deuteron energy. Tensor analyzing powers of magnitude 0.1–0.2 were observed at the high-energy side of the breakup spectra. The cross section and tensor analyzing powers were calculated based on a projectile breakup model using the S- and D-state momentum distributions of the deuteron derived from the Reid soft-core wave functions. In the calculation the tensor analyzing powers originate from the deuteron D-state alone. The experimental data at forward angles were roughly explained by the calculations except for the low-energy end of the spectra. The observed tensor analyzing powers at forward angles seem to reflect the effect of the deuteron D-state.

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The double-differential cross section d²σ/dΩ dE, analyzing power A_γ, polarization P_y' and polarization transfer coefficient K^y'_y were measured for the $(d, p X)$ reaction with 65 MeV deuterons for ¹²C at 14.0° and for ⁵⁸Ni at 7.0°, 14.0°, 20.5° and 40.0°. The experimental data were analyzed within the framework of the post-form DWBA appropriate for the “spectator breakup”, and the preequilibrium exciton model together with the evaporation mode. The experimental angular distributions are well explained by taking account for these processes over the whole proton energy region observed.
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^†: Present address: Shimadzu Corporation, Kyoto 604, Japan.

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Tensor analyzing powers of the proton continuum spectra from deuteron breakup at 56 MeV

Abstract

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Rev. Mod. Phys.

Phys. Rev.

Phys. Rev.

Phys. Rev.

Phys. Rev.

Phys. Rev.