Multiple scattering effects for quasifree scattering in 3He(d, dd)1H breakup reaction

doi:10.1016/0375-9474(85)90410-5

Nuclear Physics A

Volume 443, Issue 3, 7 October 1985, Pages 435-444

https://doi.org/10.1016/0375-9474(85)90410-5 Get rights and content

Abstract

The differential cross sections for the ³He(d, dd)¹H breakup reaction have been measured in the kinematical region corresponding to quasifree scattering (QFS). The angular dependence of the cross section at the minimum laboratory energy of the unobserved proton has been obtained. The shapes of energy spectra are approximately reproduced by a calculation in the plane-wave impulse approximation (PWIA). As for the angular dependence of the cross section and for the absolute values, the calculation fails to reproduce the experimental results. A calculation with multiple scattering effects reproduces the experimental data well, not only for the shape of the energy spectra but also for the angular dependence. For the absolute cross sections, the ratio of the experimental values to the calculated ones with multiple scattering effects is 0.7 and this value is improved compared with the value of 0.3 obtained by the PWIA calculation.

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Cited by (7)

Energy levels of light nuclei A = 5, 6, 7
2002, Nuclear Physics A
Breakup of 3He with 59.6 MeV vector-polarized deuterons at dp quasifree-scattering conditions
1995, Nuclear Physics, Section A
The ³He breakup reaction has been studied with 59.6 MeV vector-polarized deuterons at dp quasifree-scattering (QFS) conditions. In the coincidence energy spectra, large bumps corresponding to the QFS were observed. The calculation in the simple plane-wave impulse approximation (PWIA) qualitatively reproduces the energy spectra, but for the absolute cross sections, the ratio of the experimental values to the calculated values in the PWIA is about 0.27. As for the analyzing powers, the experimental values are greatly reduced as compared with the dp elastic-scattering data. The multiple-scattering effect has been investigated by a calculation taking account of the effects of double-scattering terms on the cross sections and the analyzing powers.
Quasifree scattering in the 6Li(α, 2α)2H reaction at E<inf>α</inf> between 77 and 119 MeV
1992, Nuclear Physics, Section A
The ⁶Li(α, 2α)²H breakup reaction has been measured at E_α = 77−119 MeV in coplanar, symmetric geometry. The projected energy spectra of the 2α correlation maps on the E₁ axis were obtained and analyzed with DWIA and PWIA calculations. The positions of the quasifree-scattering peaks are well reproduced by both calculations, which at the higher incident energies reproduced well the widths of the experimental peaks. At lower energies, the widths obtained from the DWIA calculation are wider than those observed. Spectroscopic factors, S_αd, for breakup into α + d deduced from the DWIA calculation averaged 0.58. Effective numbers of α-clusters, N_eff, deduced from the PWIA calculation averaged 0.22.
Breakup of 3He by alpha particles at 119.2 MeV
1990, Nuclear Physics, Section A
The ³He breakup reaction has been studied with 119.2 MeV alpha particles at αp and αd quasifree scattering (QFS) conditions. In the coincidence energy spectra, large bumps corresponding to the QFS were observed. A calculation in plane-wave impulse approximation (PWIA) qualitatively reproduces the energy spectra. The ratio of the experimental peak cross sections to the calculated peak cross sections in the PWIA for the αp QFS is 0.1 and the ratio for the αd QFS which has angular dependence ranges about from 0.15 to 0.3.
A calculation taking account of multiple scattering effect reduces the theoretical absolute cross sections considerably and reproduces the angular dependence of the ratio for the αd QFS. The ratio given by this calculation for the αp QFS is 0.4 and the one for the αd QFS is 0.86.
Multiple scattering effect for quasifree scattering in the 3He(p, pp)2H reaction at 64.8 MeV
1987, Nuclear Physics, Section A
3He breakup reaction by 65 MeV protons in the FSI region
1987, Nuclear Physics, Section A

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Nuclear Physics A

Abstract

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Cited by (7)

Energy levels of light nuclei A = 5, 6, 7

Breakup of <sup>3</sup>He with 59.6 MeV vector-polarized deuterons at dp quasifree-scattering conditions

Quasifree scattering in the <sup>6</sup>Li(α, 2α)<sup>2</sup>H reaction at E<inf>α</inf> between 77 and 119 MeV

Breakup of <sup>3</sup>He by alpha particles at 119.2 MeV

Multiple scattering effect for quasifree scattering in the <sup>3</sup>He(p, pp)<sup>2</sup>H reaction at 64.8 MeV

<sup>3</sup>He breakup reaction by 65 MeV protons in the FSI region