CKMfitter global fit results as of Moriond 12:
UT angles and sides:
UTs apex and angle:
CKM elements:
Theory parameters:
Rare decay branching fractions (B→lν, B→ll):
- Wolfenstein parameters
- UT angles and sides
- UTsangle and apex
- CKM elements
- Theory parameters
- Rare branching fractions (B→lν, B→ll)
Observable | Central ± 1 σ | ± 2 σ | ± 3 σ |
---|---|---|---|
A | 0.812 [+0.015 -0.022] | 0.812 [+0.025 -0.031] | 0.812 [+0.035 -0.039] |
λ | 0.22543 [+0.00059 -0.00095] | 0.2254 [+0.0010 -0.0019] | 0.2254 [+0.0013 -0.0027] |
ρbar | 0.145 [+0.027 -0.027] | 0.145 [+0.046 -0.040] | 0.145 [+0.057 -0.050] |
ηbar | 0.343 [+0.015 -0.015] | 0.343 [+0.030 -0.026] | 0.343 [+0.044 -0.035] |
J [10-5] | 2.96 [+0.18 -0.14] | 2.96 [+0.32 -0.19] | 2.96 [+0.46 -0.23] |
Observable | Central ± 1 σ | ± 2 σ | ± 3 σ |
---|---|---|---|
sin 2α | -0.04 [+0.15 -0.15] | -0.04 [+0.22 -0.24] | -0.04 [+0.27 -0.30] |
sin 2α (meas. not in the fit) | -0.206 [+0.195 -0.074] | -0.21 [+0.38 -0.12] | -0.21 [+0.44 -0.17] |
sin 2β | 0.691 [+0.020 -0.020] | 0.691 [+0.040 -0.034] | 0.691 [+0.060 -0.047] |
sin 2β (meas. not in the fit) | 0.820 [+0.024 -0.028] | 0.820 [+0.037 -0.086] | 0.820 [+0.049 -0.159] |
α [deg] | 91.1 [+4.3 -4.3] | 91.1 [+7.1 -6.2] | 91.1 [+8.8 -7.8] |
α [deg] (meas. not in the fit) | 95.9 [+2.2 -5.6] | 95.9 [+3.6 -10.9] | 95.9 [+5.0 -12.8] |
α [deg] (dir. meas.) | 88.7 [+4.6 -4.2] | 88.7 [+9.4 -8.5] || -1.8 [+7.1 -5.5] | 89 [+21 -13] || -2 [+14 -14] |
β [deg] | 21.85 [+0.80 -0.77] | 21.9 [+1.6 -1.3] | 21.9 [+2.5 -1.8] |
β [deg] (meas. not in the fit) | 27.5 [+1.2 -1.4] | 27.5 [+1.9 -3.9] | 27.5 [+2.6 -6.8] |
β [deg] (dir. meas.) | 21.38 [+0.79 -0.77] | 21.4 [+1.6 -1.5] | 21.4 [+2.4 -2.3] |
γ [deg] | 67.1 [+4.3 -4.3] | 67.1 [+6.1 -7.0] | 67.1 [+7.6 -8.5] |
γ [deg] (meas. not in the fit) | 67.2 [+4.4 -4.6] | 67.2 [+6.1 -7.2] | 67.2 [+7.6 -8.7] |
γ [deg] (dir. meas.) | 66 [+12 -12] | 66 [+23 -22] | 66 [+36 -30] || 103.55 [+0.44 -0.43] |
Ru | 0.372 [+0.013 -0.012] | 0.372 [+0.026 -0.021] | 0.372 [+0.040 -0.029] |
Rt | 0.921 [+0.028 -0.028] | 0.921 [+0.039 -0.046] | 0.921 [+0.049 -0.056] |
Observable | Central ± 1 σ | ± 2 σ | ± 3 σ |
---|---|---|---|
ρsbar | -0.0078 [+0.0015 -0.0015] | -0.0078 [+0.0021 -0.0025] | -0.0078 [+0.0027 -0.0031] |
ηsbar | -0.01837 [+0.00080 -0.00082] | -0.0184 [+0.0014 -0.0016] | -0.0184 [+0.0019 -0.0024] |
βs ≡ − arg(−Vcs V*cb/Vts V*tb) [rad] | 0.01822 [+0.00082 -0.00080] | 0.0182 [+0.0016 -0.0014] | 0.0182 [+0.0024 -0.0019] |
sin 2βs | 0.0364 [+0.0016 -0.0016] | 0.0364 [+0.0032 -0.0028] | 0.0364 [+0.0047 -0.0037] |
Observable | Central ± 1 σ | ± 2 σ | ± 3 σ |
---|---|---|---|
|Vud| | 0.97425 [+0.00022 -0.00014] | 0.97425 [+0.00044 -0.00023] | 0.97425 [+0.00063 -0.00031] |
|Vus| | 0.22543 [+0.00059 -0.00095] | 0.2254 [+0.0010 -0.0019] | 0.2254 [+0.0013 -0.0027] |
|Vub| | 0.00355 [+0.00015 -0.00012] | 0.00355 [+0.00028 -0.00020] | 0.00355 [+0.00042 -0.00027] |
|Vcd| | 0.22529 [+0.00060 -0.00094] | 0.2253 [+0.0010 -0.0019] | 0.2253 [+0.0013 -0.0027] |
|Vcs| | 0.97342 [+0.00022 -0.00015] | 0.97342 [+0.00044 -0.00025] | 0.97342 [+0.00064 -0.00033] |
|Vcb| | 0.04126 [+0.00060 -0.00104] | 0.04126 [+0.00098 -0.00146] | 0.0413 [+0.0014 -0.0018] |
|Vtd| | 0.00857 [+0.00033 -0.00030] | 0.00857 [+0.00047 -0.00045] | 0.00857 [+0.00059 -0.00055] |
|Vts| | 0.04051 [+0.00060 -0.00104] | 0.04051 [+0.00097 -0.00148] | 0.0405 [+0.0014 -0.0018] |
|Vtb| | 0.999142 [+0.000043 -0.000025] | 0.999142 [+0.000059 -0.000041] | 0.999142 [+0.000072 -0.000058] |
|Vud| (meas. not in the fit) | 0.97473 [+0.00021 -0.00062] | 0.97473 [+0.00041 -0.00073] | 0.97473 [+0.00061 -0.00084] |
|Vus| (meas. not in the fit) | 0.22539 [+0.00094 -0.00095] | 0.2254 [+0.0019 -0.0019] | 0.2254 [+0.0028 -0.0029] |
|Vub| (meas. not in the fit) | 0.00341 [+0.00021 -0.00010] | 0.00341 [+0.00035 -0.00019] | 0.00341 [+0.00048 -0.00028] |
|Vcb| (meas. not in the fit) | 0.0413 [+0.0028 -0.0011] | 0.0413 [+0.0034 -0.0018] | 0.0413 [+0.0040 -0.0022] |
Observable | Central ± 1 σ | ± 2 σ | ± 3 σ |
---|---|---|---|
Δmd [ps-1] (meas. not in the fit) | 0.561 [+0.046 -0.053] | 0.561 [+0.085 -0.117] | 0.56 [+0.13 -0.16] |
Δms [ps-1] (meas. not in the fit) | 17.0 [+2.1 -1.5] | 17.0 [+3.2 -2.4] | 17.0 [+3.9 -2.9] |
εK [10-3] (meas. not in the fit) | 2.02 [+0.53 -0.52] | 2.02 [+0.70 -0.63] | 2.02 [+0.84 -0.70] |
mc [GeV/c2] (meas. not in the fit) | 1.48 [+0.42 -0.47] | 1.48 [+0.52 -0.66] | 1.48 [+0.59 -0.84] |
mt [GeV/c2] (meas. not in the fit) | 159.9 [+11.1 -6.4] | 159.9 [+26.5 -9.5] | 160 [+32 -12] |
BK (lattice value not in the fit) | 0.83 [+0.21 -0.15] | 0.83 [+0.29 -0.19] | 0.83 [+0.35 -0.23] |
fBs/fBd (lattice value not in the fit) | 1.216 [+0.050 -0.044] | 1.216 [+0.097 -0.089] | 1.22 [+0.14 -0.13] |
fBs (lattice value not in the fit) | 0.2382 [+0.0048 -0.0126] | 0.2382 [+0.0084 -0.0183] | 0.238 [+0.012 -0.021] |
BBs/BBd (lattice value not in the fit) | 1.134 [+0.074 -0.093] | 1.13 [+0.15 -0.22] | 1.13 [+0.23 -0.30] |
BBs (lattice value not in the fit) | 1.220 [+0.103 -0.044] | 1.220 [+0.271 -0.074] | 1.22 [+0.32 -0.10] |
B(B+→τν) [10-4] | 0.833 [+0.098 -0.086] | 0.83 [+0.18 -0.18] | 0.83 [+0.25 -0.21] |
B(B+→τν) [10-4] (meas. not in the fit) | 0.733 [+0.121 -0.073] | 0.73 [+0.22 -0.11] | 0.73 [+0.30 -0.14] |
B(B+→μν) [10-6] | 0.374 [+0.044 -0.038] | 0.374 [+0.080 -0.079] | 0.374 [+0.114 -0.096] |
B(B+→eν) [10-11] | 0.876 [+0.103 -0.090] | 0.88 [+0.19 -0.18] | 0.88 [+0.27 -0.23] |
B(B→e+e-) [10-15] | 2.61 [+0.16 -0.24] | 2.61 [+0.24 -0.38] | 2.61 [+0.31 -0.44] |
B(B→μ+μ-) [10-11] | 11.17 [+0.70 -1.02] | 11.2 [+1.0 -1.6] | 11.2 [+1.3 -1.9] |
B(Bs→e+e-) [10-14] | 8.51 [+0.50 -0.75] | 8.51 [+0.69 -0.97] | 8.51 [+0.87 -1.13] |
B(Bs→μ+μ-) [10-9] | 3.64 [+0.21 -0.32] | 3.64 [+0.30 -0.42] | 3.64 [+0.37 -0.48] |