Shedding the Light on \(B_{d,s} \rightarrow K^{*}K^{*}\) Non-Leptonic Puzzle
摘要
The current data on several observables in \(b \rightarrow s(d) \mu ^+ \mu ^-\) transitions reveal certain discrepancies with Standard Model (SM) predictions. Considering the possibility that these deviations could stem from new physics (NP), we explore the scenario where a non-universal \(Z^{\prime }\) boson may be responsible. Additionally, we hypothesize that its couplings with quarks could influence an observable known as the non-leptonic puzzle \(L_{K^*\bar{K}^*}\) , related to rare \(B_{s(d)} \rightarrow K^{*}K^{*}\) processes. By incorporating constraints from various \(b \rightarrow s(d) \mu ^+ \mu ^-\) measurements, we analyze the potential impact of the \(Z^{\prime }\) model on this observable.