Boels Rutger H, Medina Ricardo
II. Institut für Theoretische Physik, Universität Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany.
Instituto de Física, Universidade de São Paulo, Rua do Matão 1371, 05508-090 São Paulo-SP, Brazil‡ and Instituto de Matemática e Computação, Universidade Federal de Itajubá, Avenida BPS 1303, 37500-903, Itajubá-MG, Brazil§.
Phys Rev Lett. 2017 Feb 10;118(6):061602. doi: 10.1103/PhysRevLett.118.061602.
Graviton and gluon scattering are studied from minimal physical assumptions such as Poincare and gauge symmetry as well as unitarity. The assumptions lead to an interesting and surprisingly restrictive set of linear equations. This shows gluon and graviton scattering to be related in many field and string theories, explaining and extending several known results. By systematic analysis exceptional graviton scattering amplitudes are derived, which in general dimensions cannot be related to gluon amplitudes. The simplicity of the formalism guarantees wide further applicability to gauge and gravity theories.
从诸如庞加莱对称性、规范对称性以及幺正性等最小物理假设出发，研究了引力子和胶子散射。这些假设导致了一组有趣且出人意料地具有限制性的线性方程。这表明在许多场论和弦理论中，胶子和引力子散射是相关的，解释并扩展了几个已知结果。通过系统分析，得出了特殊的引力子散射振幅，在一般维度下，这些振幅与胶子振幅无关。该形式体系的简单性保证了其在规范理论和引力理论中具有广泛的进一步适用性。
