论文标题
新的Proca互动类
New class of Proca interactions
论文作者
论文摘要
我们提出了一类新的ProCA相互作用，这些相互作用享有非平凡的约束，因此可以传播正确的自由度，以获得健康的大型Spin-1领域。我们表明，散射幅度始终与广义Proca的散射幅度不同。这意味着这里提出的新相互作用类别与广义proca完全不同，并且两者之间没有局部字段重新定义。在弯曲的时空中，大量重力是自然的协变量化，但我们展示了如何考虑其他类别的协变量。
We propose a new class of Proca interactions that enjoy a non-trivial constraint and hence propagates the correct number of degrees of freedom for a healthy massive spin-1 field. We show that the scattering amplitudes always differ from those of the Generalized Proca. This implies that the new class of interactions proposed here are genuinely different from the Generalized Proca and there can be no local field redefinitions between the two. In curved spacetime, massive gravity is the natural covariantization but we show how other classes of covariantizations can be considered.
