Exploring the $S_8$ Tension: Insights from the CatNorth 1.5-Million Quasar Candidates

Jin Qin, Xue-Bing Wu, Yuming Fu +4

The parameter $S_8$, a key probe of cosmic structure growth, exhibits a persistent $\sim 3\sigma$ tension between high-redshift measurements from cosmic microwave background (CMB) anisot…