QCD axion dark matter and the cosmic dipole problem

There is increasing evidence suggesting a discrepancy between the cosmic dipole observed in the number count of distant galaxies and the one derived from the cosmic microwave background (CMB). In this study, we investigate the possibility that the cosmic dipole problem can be addressed by considering the QCD axion, a hypothetical particle that arises from the spontaneous breaking of the Peccei-Quinn symmetry and is postulated to constitute the dark matter in our Universe.

Automated summary

There is evidence suggesting a discrepancy between the cosmic dipole observed in distant galaxies and the one derived from the cosmic microwave background. This study investigates the possibility of addressing this cosmic dipole problem by considering the QCD axion, a hypothetical particle that is postulated to constitute dark matter.