A unified description for dipoles of the fine-structure constant and SnIa Hubble diagram in Finslerian universe
Xin Li (State Key Laboratory Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, 100190, Beijing, China, Department of Physics, Chongqing University, 401331, Chongqing, China); Hai-Nan Lin (Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, China); Sai Wang (State Key Laboratory Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, 100190, Beijing, China); Zhe Chang (Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, China, State Key Laboratory Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, 100190, Beijing, China)
We propose a Finsler spacetime scenario of the anisotropic universe. The Finslerian universe requires both the fine-structure constant and the accelerating cosmic expansion to have a dipole structure and the directions of these two dipoles to be the same. Our numerical results show that the dipole direction of the SnIa Hubble diagram locates at (l,b)=(314.6∘±20.3∘,-11.5∘±12.1∘) with magnitude B=(-3.60±1.66)×10-2 . The dipole direction of the fine-structure constant locates at (l,b)=(333.2∘±8.8∘,-12.7∘±6.3∘) with magnitude B=(0.97±0.21)×10-5 . The angular separation between the two dipole directions is about 18.2∘ .
