New Physics in $ b \to s τ^+τ^-$ Processes and Correlations with $R(D^{(*)})$ and $B\to K^{(*)}ν\barν$: An (SM)EFT Analysis

Tauonic flavour-changing neutral-current transitions ($b\to sτ^+τ^-$) are sensitive probes of New Physics connected to third-generation quarks and leptons. Motivated by the persistent anomalies in $R(D^{(*)})$ and the indications of enhanced $B^+\to K^{+}ν\barν$ rates, we revisit and update the pred