费米子的双重副本作为唯一的引力相互作用物质
Double copies of fermions as only gravitational interacting matter
摘要:
受散射振幅领域最新进展的启发,我们讨论了可以被描述为费米子的双拷贝的假设粒子--以同样的方式,引力子可以被看作是规范玻色子的双拷贝。作为引力子,这些假设的粒子只通过引力相互作用相互作用。我们提出了两种等效的方法来计算相关的散射振幅。假设的粒子可以是有质量的和非相对论性的。
英文摘要:
Inspired by the recent progress in the field of scattering amplitudes, we discuss hypothetical particles which can be characterised as the double copies of fermions -- in the same way gravitons can be viewed as double copies of gauge bosons. As the gravitons, these hypothetical particles interact only through gravitational interactions. We present two equivalent methods for the computation of the relevant scattering amplitudes. The hypothetical particles can be massive and non-relativistic.
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