The differential cross section and polarization quantities in the 4He(d,p)n4He and 2H(α, n)p4He reactions |
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Authors: | Koike Yasuro |
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Institution: | Department of Nuclear Engineering, Kyoto University, Sakyo-ku, Kyoto Japan |
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Abstract: | The differential cross section and the polarization quantities (T11, T20, T21, T22, Pγ') in the deuteron breakup reaction by an α-particle are calculated in the framework of the recently developed three-body model. All values are discussed under the incomplete kinematical condition. All polarization quantities are caused by the difference of the potential between and waves of the N-α interaction. Results of the calculation are compared with the available measurement of (i) the differential cross section and the deuteron vector analysing power in the 4He(, p)n4He reaction and (ii) the differential cross section and neutron polarization in the 2H(α, )p4He reaction. The agreement with experiment is very satisfactory in each case. Among the tensor analysing powers of the deuteron the absolute value of T20 is very large. Observables at the FSI peak corresponding to 5Heg.s. are discussed systematically in the energy region of 5.4–20 MeV of the incident deuteron in the 4He(d, p)n4He reaction. Although the differential cross section is not sensitive to the energy of the three-body resonance, the polarization quantities T11, T20, Pγ' are quite sensitive to it. |
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