CKMfitter global fit results as of Summer 14:
UT angles and sides:
UTs apex and angle:
CKM elements:
Input parameters:
Rare decay branching fractions (B→lν, B→ll):
- Wolfenstein parameters
- UT angles and sides
- UTsangle and apex
- CKM elements
- Input parameters
- Rare decay branching fractions
Observable | Central ± 1 σ | ± 2 σ | ± 3 σ |
---|---|---|---|
A | 0.810 [+0.018 -0.024] | 0.810 [+0.025 -0.030] | 0.810 [+0.032 -0.035] |
λ | 0.22548 [+0.00068 -0.00034] | 0.22548 [+0.00096 -0.00068] | 0.2255 [+0.0010 -0.0010] |
ρbar | 0.1453 [+0.0133 -0.0073] | 0.145 [+0.032 -0.015] | 0.145 [+0.042 -0.022] |
ηbar | 0.343 [+0.011 -0.012] | 0.343 [+0.022 -0.025] | 0.343 [+0.034 -0.036] |
J [10-5] | 2.96 [+0.19 -0.18] | 2.96 [+0.30 -0.22] | 2.96 [+0.42 -0.27] |
Observable | Central ± 1 σ | ± 2 σ | ± 3 σ |
---|---|---|---|
sin 2α | -0.036 [+0.042 -0.082] | -0.036 [+0.084 -0.189] | -0.04 [+0.12 -0.25] |
sin 2α (meas. not in the fit) | -0.053 [+0.046 -0.146] | -0.053 [+0.090 -0.209] | -0.05 [+0.13 -0.26] |
sin 2β | 0.692 [+0.018 -0.019] | 0.692 [+0.037 -0.037] | 0.692 [+0.055 -0.052] |
sin 2β (meas. not in the fit) | 0.771 [+0.017 -0.041] | 0.771 [+0.034 -0.103] | 0.771 [+0.050 -0.141] |
α [deg] | 91.0 [+2.3 -1.2] | 91.0 [+5.5 -2.4] | 91.0 [+7.2 -3.6] |
α [deg] (meas. not in the fit) | 91.5 [+4.2 -1.3] | 91.5 [+6.1 -2.6] | 91.5 [+7.6 -3.8] |
α [deg] (dir. meas.) | 87.7 [+3.5 -3.3] || -1.1 [+3.8 -4.0] | 87.7 [+10.1 -6.5] || -1.1 [+7.8 -9.0] | 87.7 [+16.1 -9.8] || -1 [+12 -15] |
β [deg] | 21.89 [+0.74 -0.77] | 21.9 [+1.5 -1.4] | 21.9 [+2.3 -2.0] |
β [deg] (meas. not in the fit) | 25.22 [+0.78 -1.79] | 25.2 [+1.6 -4.3] | 25.2 [+2.4 -5.7] |
β [deg] (dir. meas.) | 21.50 [+0.75 -0.74] | 21.5 [+1.5 -1.5] | 21.5 [+2.3 -2.2] |
γ [deg] | 67.08 [+0.97 -2.17] | 67.1 [+2.0 -5.0] | 67.1 [+3.0 -6.4] |
γ [deg] (meas. not in the fit) | 66.9 [+1.0 -3.7] | 66.9 [+2.0 -5.5] | 66.9 [+3.1 -6.6] |
γ [deg] (dir. meas.) | 73.2 [+6.3 -7.0] | 73 [+13 -15] | 73 [+20 -24] |
sin (2β + γ) | 0.934 [+0.015 -0.011] | 0.934 [+0.033 -0.023] | 0.934 [+0.043 -0.036] |
Ru | 0.373 [+0.012 -0.012] | 0.373 [+0.024 -0.023] | 0.373 [+0.036 -0.032] |
Rt | 0.9212 [+0.0063 -0.0141] | 0.921 [+0.013 -0.033] | 0.921 [+0.020 -0.041] |
Observable | Central ± 1 σ | ± 2 σ | ± 3 σ |
---|---|---|---|
ρsbar | -0.00777 [+0.00040 -0.00072] | -0.00777 [+0.00081 -0.00176] | -0.0078 [+0.0012 -0.0023] |
ηsbar | -0.01841 [+0.00064 -0.00060] | -0.0184 [+0.0013 -0.0012] | -0.0184 [+0.0019 -0.0018] |
βs ≡ − arg(−Vcs V*cb/Vts V*tb) [rad] | 0.01826 [+0.00059 -0.00064] | 0.0183 [+0.0012 -0.0013] | 0.0183 [+0.0018 -0.0019] |
sin 2βs | 0.0365 [+0.0012 -0.0013] | 0.0365 [+0.0024 -0.0026] | 0.0365 [+0.0036 -0.0038] |
Observable | Central ± 1 σ | ± 2 σ | ± 3 σ |
---|---|---|---|
|Vud| | 0.974242 [+0.000079 -0.000158] | 0.97424 [+0.00016 -0.00022] | 0.97424 [+0.00023 -0.00024] |
|Vus| | 0.22548 [+0.00068 -0.00034] | 0.22548 [+0.00096 -0.00068] | 0.2255 [+0.0010 -0.0010] |
|Vub| | 0.00355 [+0.00017 -0.00015] | 0.00355 [+0.00029 -0.00022] | 0.00355 [+0.00041 -0.00029] |
|Vcd| | 0.22534 [+0.00068 -0.00034] | 0.22534 [+0.00096 -0.00068] | 0.2253 [+0.0011 -0.0010] |
|Vcs| | 0.97341 [+0.00011 -0.00018] | 0.97341 [+0.00019 -0.00025] | 0.97341 [+0.00027 -0.00028] |
|Vcb| | 0.04117 [+0.00090 -0.00114] | 0.0412 [+0.0012 -0.0014] | 0.0412 [+0.0016 -0.0016] |
|Vtd| | 0.00855 [+0.00021 -0.00027] | 0.00855 [+0.00030 -0.00041] | 0.00855 [+0.00039 -0.00051] |
|Vts| | 0.04043 [+0.00088 -0.00112] | 0.0404 [+0.0012 -0.0014] | 0.0404 [+0.0015 -0.0016] |
|Vtb| | 0.999146 [+0.000046 -0.000038] | 0.999146 [+0.000056 -0.000052] | 0.999146 [+0.000065 -0.000066] |
|Vud| (meas. not in the fit) | 0.974243 [+0.000079 -0.000156] | 0.97424 [+0.00016 -0.00023] | 0.97424 [+0.00024 -0.00030] |
|Vus| (meas. not in the fit) | 0.224489 [+0.001589 -0.000067] | 0.22449 [+0.00201 -0.00013] | 0.22449 [+0.00208 -0.00020] |
|Vub| (meas. not in the fit) | 0.003455 [+0.000227 -0.000095] | 0.00346 [+0.00035 -0.00018] | 0.00346 [+0.00048 -0.00026] |
|Vcb| (meas. not in the fit) | 0.0412 [+0.0026 -0.0013] | 0.0412 [+0.0029 -0.0016] | 0.0412 [+0.0033 -0.0018] |
Observable | Central ± 1 σ | ± 2 σ | ± 3 σ |
---|---|---|---|
Δmd [ps-1] (meas. not in the fit) | 0.566 [+0.035 -0.043] | 0.566 [+0.062 -0.078] | 0.566 [+0.090 -0.116] |
Δms [ps-1] (meas. not in the fit) | 16.3 [+1.1 -1.1] | 16.3 [+2.4 -1.5] | 16.3 [+3.5 -1.9] |
εK [10-3] (meas. not in the fit) | 2.03 [+0.59 -0.55] | 2.03 [+0.71 -0.64] | 2.03 [+0.83 -0.70] |
mt [GeV/c2] (meas. not in the fit) | 157.4 [+7.7 -2.2] | 157.4 [+22.1 -4.4] | 157.4 [+29.4 -6.6] |
BK (lattice value not in the fit) | 0.86 [+0.27 -0.20] | 0.86 [+0.34 -0.23] | 0.86 [+0.39 -0.26] |
fBs/fBd (lattice value not in the fit) | 1.246 [+0.042 -0.031] | 1.246 [+0.073 -0.078] | 1.25 [+0.10 -0.12] |
fBs (lattice value not in the fit) | 0.2360 [+0.0031 -0.0164] | 0.2360 [+0.0053 -0.0189] | 0.2360 [+0.0076 -0.0211] |
BBs/BBd (lattice value not in the fit) | 1.135 [+0.051 -0.070] | 1.14 [+0.10 -0.14] | 1.14 [+0.16 -0.22] |
BBs (lattice value not in the fit) | 1.295 [+0.211 -0.073] | 1.295 [+0.243 -0.097] | 1.30 [+0.27 -0.12] |
Observable | Central ± 1 σ | ± 2 σ | ± 3 σ |
---|---|---|---|
B(B+→τν) [10-4] | 0.810 [+0.059 -0.086] | 0.81 [+0.12 -0.13] | 0.81 [+0.19 -0.17] |
B(B+→τν) [10-4] (meas. not in the fit) | 0.758 [+0.080 -0.059] | 0.76 [+0.15 -0.10] | 0.76 [+0.22 -0.13] |
B(B+→μν) [10-6] | 0.364 [+0.027 -0.038] | 0.364 [+0.055 -0.060] | 0.364 [+0.085 -0.077] |
B(B+→eν) [10-11] | 0.851 [+0.063 -0.090] | 0.85 [+0.13 -0.14] | 0.85 [+0.20 -0.18] |
B(B→e+e-) [10-15] | 2.29 [+0.14 -0.16] | 2.29 [+0.20 -0.23] | 2.29 [+0.25 -0.27] |
B(B→μ+μ-) [10-11] | 9.80 [+0.62 -0.68] | 9.80 [+0.86 -0.98] | 9.8 [+1.1 -1.2] |
B(Bs→e+e-) [10-14] | 7.64 [+0.46 -0.43] | 7.64 [+0.59 -0.52] | 7.64 [+0.71 -0.61] |
B(Bs→μ+μ-) [10-9] | 3.26 [+0.20 -0.18] | 3.26 [+0.25 -0.22] | 3.26 [+0.31 -0.26] |
B(Bs→μ+μ-) [10-9] (meas. not in the fit) | 3.34 [+0.13 -0.25] | 3.34 [+0.18 -0.30] | 3.34 [+0.23 -0.34] |
B(Ds+→τ+ν) [10-2] (meas. not in the fit) | 5.187 [+0.021 -0.115] | 5.187 [+0.042 -0.296] | 5.187 [+0.063 -0.400] |
B(Ds+→μ+ν) [10-3] (meas. not in the fit) | 5.314 [+0.021 -0.093] | 5.314 [+0.043 -0.260] | 5.314 [+0.064 -0.403] |
B(D+→μ+ν) [10-4] (meas. not in the fit) | 3.91 [+0.11 -0.11] | 3.91 [+0.14 -0.19] | 3.91 [+0.18 -0.29] |
B(K+→μ+ν) [10-1] (meas. not in the fit) | 6.364 [+0.027 -0.030] | 6.364 [+0.048 -0.060] | 6.364 [+0.067 -0.089] |
B(K+→e+ν) [10-5] (meas. not in the fit) | 1.5690 [+0.0047 -0.0047] | 1.5690 [+0.0093 -0.0093] | 1.569 [+0.013 -0.013] |
B(τ+→K+ν) [10-3] (meas. not in the fit) | 7.178 [+0.015 -0.015] | 7.178 [+0.031 -0.031] | 7.178 [+0.046 -0.046] |