TABLE VIII: Status and prospects of selected B$_{s,d}$ , D , K and t observables (based on information from Ref. [46, 91, 92]). In the third column “Latt” refer to improvements in Lattice QCD expected in the next 5 years. In the fourth column the bounds are 90% CL. The errors in the fifth column refer to 10 fb − 1 at LHCb, 50 ab − 1 at Super- B , and two years at NA62 (“ K factory”). In the third and fifth column the errors followed by “%” are relative errors, whil the others are absolute errors. For entries marked “[?]” we have not found a reliable estimate of the future experimental prospects. 28 SM Theory Present Future Future Observable prediction error result error Facility | V$_{us}$ | [ K → πℓν ] input 0 . 5% → 0 . 1%$_{Latt}$ 0 . 2246 ± 0 . 0012 0.1% K factory | V$_{cb}$ | [ B → X$_{c}$ℓν ] input 1% (41 . 54 ± 0 . 73) × 10 − 3 1% Super- B | V$_{ub}$ | [ B → πℓν ] input 10% → 5%$_{Latt}$ (3 . 38 ± 0 . 36) × 10 − 3 4% Super- B γ [ B → DK ] input < 1 ◦ (70 +27 − $_{30}$) ◦ 3 ◦ LHCb S$_{B}$$_{d}$$_{→}$$_{ψK}$ sin(2 β ) ∼ < 0 . 01 0 . 671 ± 0 . 023 0.01 LHCb S$_{B}$$_{s}$$_{→}$$_{ψφ}$ 0.036 ∼ < 0 . 01 0 . 81 +0 . 12 − 0 32 0 . 01 LHCb S$_{B}$$_{d}$$_{→}$$_{φK}$ sin(2 β ) ∼ < 0 . 05 0 . 44 ± 0 . 18 0.1 LHCb S$_{B}$$_{s}$$_{→}$$_{φφ}$ 0 . 036 ∼ < 0 . 05 — 0 . 05 LHCb S$_{B}$$_{d}$$_{→}$$_{K}$ ∗ γ few × 0.01 0 . 01 − 0 . 16 ± 0 . 22 0 . 03 Super- B S$_{B}$$_{s}$$_{→}$$_{φγ}$ few × 0.01 0 . 01 — 0 . 05 LHCb A d SL − 5 × 10 − 4 10 − 4 − (5 . 8 ± 3 . 4) × 10 − 3 10 − 3 LHCb A s SL 2 × 10 − 5 < 10 − 5 (1 . 6 ± 8 . 5) × 10 − 3 10 − 3 LHCb A$_{CP}$ ( b → sγ ) < 0 . 01 < 0 . 01 − 0 . 012 ± 0 . 028 0.005 Super- B B ( B → τν ) 1 × 10 − 4 20% → 5%$_{Latt}$ (1 . 73 ± 0 . 35) × 10 − 4 5% Super- B B ( B → µν ) 4 × 10 − 7 20% → 5%$_{Latt}$ < 1 . 3 × 10 − 6 6% Super- B B ( B$_{s}$ → µ $^{+}$µ $^{−}$) 3 × 10 − 9 20% → 5%$_{Latt}$ < 5 × 10 − 8 10% LHCb B ( B$_{d}$ → µ $^{+}$µ $^{−}$) 1 × 10 − 10 20% → 5%$_{Latt}$ < 1 . 5 × 10 − 8 [?] LHCb A$_{FB}$ ( B → K $^{∗}$µ $^{+}$µ $^{−}$)$_{q}$ 2 0 0 0 . 05 (0 . 2 ± 0 . 2) 0 . 05 LHCb B → Kν ¯ ν 4 × 10 − 6 20% → 10%$_{Latt}$ < 1 . 4 × 10 − 5 20% Super- B | q/p | D − mixing 1 < 10 − 3 (0 . 86 +0 . 18 − 0 $_{15}$) 0 . 03 Super- B φ$_{D}$ 0 < 10 − 3 (9 . 6 +8 . 3 − 9 $_{5}$) ◦ 2 ◦ Super- B B ( K + → π $^{+}$ν ¯ ν ) 8 . 5 × 10 − 11 8% (1 . 73 +1 . 15 − 1 $_{05}$) × 10 − 10 10% K factory B ( K$_{L}$ → π $^{0}$ν ¯ ν ) 2 . 6 × 10 − 11 10% < 2 . 6 × 10 − 8 [?] K factory R ( e/µ $^{)}$( K → πℓν ) 2 . 477 × 10 − 5 0.04% (2 . 498 ± 0 . 014) × 10 − 5 0.1% K factory B ( t → c Z, γ ) O ( 10 − 13 ) O ( 10 − 13 ) < 0 . 6 × 10 − 2 O ( 10 − 5 ) LHC (100 fb − $^{1}$)