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首页> 外文期刊>Physical review, D >Spin asymmetry in single pion production induced by weak interactions of neutrinos with polarized nucleons
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Spin asymmetry in single pion production induced by weak interactions of neutrinos with polarized nucleons

机译：中微子与极化核子的弱相互作用导致单离子产生的自旋不对称

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摘要

The single pion production (SPP) in the charged-current neutrino (antineutrino) scattering off the polarized nucleon is discussed. The spin asymmetry is predicted within two approaches. The spin polarizations of the target nucleon that are longitudinal and perpendicular to the neutrino momentum are considered. It is shown, in several examples, that information about the SPP dynamics coming from the spin asymmetry is complementary to information obtained from measurements of spin averaged cross section. Indeed, the spin asymmetry is sensitive to the nonresonance background description of the SPP model. For the normal polarization of the target, the spin asymmetry is given by the interference between the resonance and the nonresonance contributions.
机译：讨论了带电电流中微子（反中微子）从极化核子中散射出来的单离子产生（SPP）。在两种方法中可以预测自旋不对称性。考虑了纵向和垂直于中微子动量的目标核子的自旋极化。在几个示例中，显示了有关自旋不对称的SPP动力学信息与自旋平均横截面测量获得的信息互补。实际上，自旋不对称对SPP模型的非共振背景描述敏感。对于目标的正常极化，自旋不对称性由共振和非共振贡献之间的干扰给出。

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