The angular observables of b c (⁰ ^+) \, ^- (^- _) \, _ within the paradigm of FCCC anomalies

Abstract We present a global analysis of the current B -meson flavor anomalies and extend it to the baryonic sector through the decay b⁰ c^+ (⁰ ^+) ^- (^- _) _ Λ b 0 → Λ c + (→ Λ 0 π +) τ - (→ π - ν τ) ν ¯ τ. The lepton flavor universality ratios R / (, ₄) (D^ (*) ) R τ / (μ, e) (D (∗) ), measured by BaBar, Belle, and LHCb, exhibit a combined 3. 8 3. 8 σ deviation from Standard Model (SM) predictions. Using the latest HFLAV averages and imposing Bc B c -lifetime constraints on the branching ratio, {B} (Bc) B (B c → τ ν) 60 %, 30 %, 10 %, we perform a global fit to the anomaly data and propagate the preferred new physics (NP) solutions to the full cascade decay b⁰ c^+ (⁰ ^+) ^- (^- _) _ Λ b 0 → Λ c + (→ Λ 0 π +) τ - (→ π - ν τ)