论文标题
从有效的大规模结构理论的红移空间中星系的单循环双光谱
The one-loop bispectrum of galaxies in redshift space from the Effective Field Theory of Large-Scale Structure
论文作者
论文摘要
我们得出了对深色物质和真实和红移空间中有偏见的示踪剂的一环双光谱的大规模结构对抗的有效田间理论。这需要在波动中扩展有偏置的示踪剂的第四阶。在此过程中，我们遇到了几个与重新规定有关的微妙之处。一个事实是，在重大势头时，局部反赛事在非局部贡献。第二个微妙之处与速度场的局部产物的重新归一化有关，这些速度领域需要用重新归一化的速度来表达，以保留Galilean对称性。我们检查我们确定的反对物是否足以在导数扩展中领先和转向序列上重新归一化的单循环双光谱。我们最初在此处存在的内核已经用于Boss Data中的单环双光谱的首次分析[1，2]。
We derive the kernels and the Effective Field Theory of Large-Scale Structure counterterms for the one-loop bispectrum of dark matter and of biased tracers in real and redshift space. This requires the expansion of biased tracers up to fourth order in fluctuations. In the process, we encounter several subtleties related to renormalization. One is the fact that, in renormalizing the momentum, a local counterterm contributes non-locally. A second subtlety is related to the renormalization of local products of the velocity fields, which need to be expressed in terms of the renormalized velocity in order to preserve Galilean symmetry. We check that the counterterms we identify are necessary and sufficient to renormalize the one-loop bispectrum at leading and subleading order in the derivative expansion. The kernels that we originally present here have already been used for the first analyses of the one-loop bispectrum in BOSS data [1, 2].
