论文标题
Weyl不变的重力和暗物质的本质
Weyl-Invariant Gravity and the Nature of Dark Matter
论文作者
论文摘要
星系和星系簇中的明显缺失质量（通常被视为暗物质的证据）可能起源于重力耦合参数，$ g $和主动重力质量的梯度，$ m_ {act} $，而不是假设的超级标准标准模型颗粒。我们认为，在（弱场限制）中，weyl不变的一般相对性扩展可以简单地影响更改$φ_{b}（x）\rightarrowφ_{b}（x） +φ_{dm}（dm}（dm}（x）$）这是由$ gm_ {act} $的梯度和$ o（-4φ_{dm}（x））$的分数增加在巴里昂密度中的补偿，远低于所有相关量表的当前检测阈值。
The apparent missing mass in galaxies and galaxy clusters, commonly viewed as evidence for dark matter, could possibly originate from gradients in the gravitational coupling parameter, $G$, and active gravitational mass, $M_{act}$, rather than hypothetical beyond-the-standard-model particles. We argue that in (the weak field limit of) a Weyl-invariant extension of General Relativity, one can simply affect the change $Φ_{b}(x)\rightarrowΦ_{b}(x) + Φ_{DM}(x)$, where $Φ_{b}$ is the baryon-sourced potential and $Φ_{DM}$ is the `excess' potential. This is compensated by gradients of $GM_{act}$ and a fractional increase of $O(-4Φ_{DM}(x))$ in the baryon density, well below current detection thresholds on all relevant scales.
