论文标题
哈勃速率麻烦：暗物质的有效领域理论
The Hubble Rate Trouble: An Effective Field Theory of Dark Matter
论文作者
论文摘要
从6参数拟合到CMB功率谱与通过直接测量通过IA型超新星和CepheID观测值获得的值相冲突的哈勃常数。我们写下涉及Spin-0，Spin-1/2和Spin-1暗物质的有效算子，这些旋转1/2在早期导致暗物质颗粒的相对生产，因此导致相对论自由度的数量增加。适合CMB，BBN和结构形成的机制可以充分提高源自CMB的哈勃常数的值，并调和哈勃常数的局部局部和CMB探针。仅此机制将$ h_0 $提高到$ 70 \，{\ rm km s^{ - 1} mpc^{ - 1}} $，并借助幻影宇宙学，达到$ h_0 \ simeq 71-73 \，{\ rm km km s^{\ rm km s^{ - 1} $} $}}最后，我们概述了复制$ H_0 \ Simeq 71-73 \，{\ rm km s^{ - 1} mpc^{ - 1}} $的参数空间区域，同时遵守所有相关的约束。
The Hubble constant inferred from the 6-parameter fit to the CMB power spectrum conflicts with the value obtained from direct measurements via type Ia supernova and Cepheids observations. We write down effective operators involving spin-0, spin-1/2, and spin-1 dark matter that lead to the relativistic production of dark matter particles at early times, and consequently lead to an increase in the number of relativistic degrees of freedom. This mechanism which is amenable to CMB, BBN, and structure formation observables can sufficiently raise the value of the Hubble constant derived from CMB and reconcile local and CMB probes of the Hubble constant. This mechanism alone increases $H_0$ up to $70\, {\rm km s^{-1} Mpc^{-1}}$, and with the help of a Phantom-like cosmology, reach $H_0 \simeq 71-73\, {\rm km s^{-1} Mpc^{-1}}$. Lastly, we outline the region of parameter space which reproduces $H_0 \simeq 71-73\, {\rm km s^{-1} Mpc^{-1}}$ while obeying all relevant constraints.
