The interaction of massless minimally coupled scalar field and spinor field (Ψ + Φm → Ψ + Φm) is investigated and the behavior of interaction and scattering matrix in Minkowski limit is studied. It is seen that the massless minimally coupled scalar field operator, the interaction Lagrangian and the scattering matrix become zero. Also, the incoming and outgoing spinor fields, which in de Sitter spacetime are different and are interacted with massless minimally coupled scalar field, in null curvature limit are the same and no interaction seen. In other words, the massless minimally coupled scalar field is dependent on curvature and can be considered as a part of a gravitational field.

中文翻译：

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德西特宇宙中无质量最小耦合标量场与旋量场的相互作用

无质量最小耦合标量场与旋量场的相互作用(Ψ + Φ米 → Ψ + Φ米)研究并研究了Minkowski极限下的相互作用和散射矩阵的行为。可以看出，无质量最小耦合标量场算子、相互作用拉格朗日和散射矩阵变为零。此外，在德西特时空中的传入和传出自旋量场是不同的，并且与无质量最小耦合标量场相互作用，在零曲率极限下是相同的，没有看到相互作用。换句话说，无质量最小耦合标量场依赖于曲率，可以被视为引力场的一部分。