论文标题
柔软的重力与费米斯物质
Soft-collinear gravity with fermionic matter
论文作者
论文摘要
我们将软性和共线引力的有效场理论扩展到与费米子物质领域的相互作用。完整的理论还具有局部的洛伦兹对称性，除了通常的差异性，它要求将前者纳入软连线性重力框架中。局部洛伦兹对称性在有效的理论中引起了威尔逊线，即强烈类似于在非亚伯仪相互作用中的cot中的对称性，而在标量质量的情况下，差异性可以以相同的方式对待。软共线引力的基本结构具有均匀的软背景场，从而产生了协变量和多极扩展的协变量的riemann-tensor相互作用，并且以自然的方式概括了fermion领域。
We extend the effective field theory for soft and collinear gravitons to interactions with fermionic matter fields. The full theory features a local Lorentz symmetry in addition to the usual diffeomorphisms, which requires incorporating the former into the soft-collinear gravity framework. The local Lorentz symmetry gives rise to Wilson lines in the effective theory that strongly resemble those in SCET for non-abelian gauge interactions, whereas the diffeomorphisms can be treated in the same fashion as in the case of scalar matter. The basic structure of soft-collinear gravity, which features a homogeneous soft background field, giving rise to a covariant derivative and multipole-expanded covariant Riemann-tensor interactions, remains unaltered and generalises in a natural way to fermion fields.
