论文标题
D3-Brane循环振幅来自M5-Brane树振幅
D3-Brane Loop Amplitudes from M5-Brane Tree Amplitudes
论文作者
论文摘要
我们研究了探针D3-Brane的世界体积理论中散射幅度的循环校正，该理论由超对称性狄拉克出生的智能理论描述。我们表明，可以从探针M5-Brane（或D5-Brane）的世界体积理论中获得D3-Brane Loop超级增压。 M5-Brane理论描述了带有$（2,0）$ supersymmetry的Abelian Tensor Supermultiplet的自我互动，而Twistor公式给出了树级的超级增压。我们将构造应用于D3-Brane理论中的最大甲基侵略性（MHV）幅度，以一环阶，这是纯粹是理性术语（除了四点振幅除外）。通过广义单位方法进一步证实了结果。通过对M5-Brane树级超级增压的超对称性降低，我们还对非苏匹配D3-Brane振幅构建了一环校正，这与文献中已知的结果一致。
We study loop corrections to scattering amplitudes in the world-volume theory of a probe D3-brane, which is described by the supersymmetric Dirac-Born-Infeld theory. We show that the D3-brane loop superamplitudes can be obtained from the tree-level superamplitudes in the world-volume theory of a probe M5-brane (or D5-brane). The M5-brane theory describes self-interactions of an abelian tensor supermultiplet with $(2,0)$ supersymmetry, and the tree-level superamplitudes are given by a twistor formula. We apply the construction to the maximally-helicity-violating (MHV) amplitudes in the D3-brane theory at one-loop order, which are purely rational terms (except for the four-point amplitude). The results are further confirmed by generalised unitarity methods. Through a supersymmetry reduction on the M5-brane tree-level superamplitudes, we also construct one-loop corrections to the non-supersymmetric D3-brane amplitudes, which agree with the known results in the literature.
