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Which helicity state of an unpolarized neutron beam will be more strongly absorbed by a helium-3 target polarized with its speed along the neutron beam axis?
Wiki User
∙ 15y ago
If the 3He target has its spin polarized along the axis of the neutron beam, you may consider that the protons' spin will be canceling out and the spin will be more-or-less carried by the one neutron. Thus it will prefer to absorb neutrons polarized in the opposite direction, ie negative helicity.
Wiki User
∙ 15y ago
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