Reducing the H0 tension with generalized Proca theory
Reducing the H0 tension with generalized Proca theory
复制标题
用广义 Proca 理论降低 H0 张力
DOI：
10.1088/1475-7516/2020/08/038
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发表时间：
2020
影响因子：
6.4
通讯作者：
Lu Yin
中科院分区：
文献类型：
--
作者：
A. D. Felice;C. Geng;M. C. Pookkillath;Lu Yin
我们研究了广义普罗卡理论的宇宙学可行性。我们首先实现的背景和线性微扰运动方程的Boltzmann代码，然后研究的广义proca理论的参数的约束后，对宇宙学数据集运行MCMC。利用Planck + HST数据，我们得到了约束h=0.7334 - 0.0269+0.0246，这表明该理论中早期宇宙和晚期宇宙之间的张力被消除了。通过添加其他后期数据集（BAO、RSD等）我们表明，张力减小了，因为Proca中h的2σ允许区域h=0.7041−0.0087+0.0094与HST数据的2σ区域重叠。
We investigate the cosmological viability of the generalized proca theory. We first implement the background and linear perturbation equations of motion in the Boltzmann code and then study the constraints on the parameters of the generalized proca theory after running MCMC against the cosmological data set. With Planck + HST data, we obtain the constraint h=0.7334−0.0269+0.0246, which indicates that the tension between early universe and late time universe within this theory is removed. By adding other late-time data sets (BAO, RSD, etc.) we show that the tension is reduced, as the 2σ allowed region for h in Proca, h=0.7041−0.0087+0.0094, overlaps with the 2σ region of the HST data.
影响因子：
4.8
作者：
Abbott, T. M. C.;Abdalla, F. B.;Zuntz, J.
通讯作者：
Zuntz, J.
影响因子：
8.6
作者：
Abbott, B. P.;Abbott, R.;Zweizig, J.
通讯作者：
Zweizig, J.