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A Mathematica based Version of the CKMfitter Package

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40 Chapter 5. Probing <strong>the</strong> Standard Model<br />

The results <strong>of</strong> <strong>the</strong> Standard Global CKM Fit for <strong>the</strong> Wolfenstein parameters A, λ, ¯ρ,<br />

¯η and <strong>the</strong> Jarlskog invariant J are shown in Figure 5.4. Fur<strong>the</strong>rmore, <strong>the</strong> fit results<br />

<strong>of</strong> <strong>the</strong> UT angles α, β and γ are compared with <strong>the</strong>ir SM predictions and <strong>the</strong>ir<br />

direct measurements. In this case, SM prediction means <strong>the</strong> result <strong>of</strong> <strong>the</strong> Standard<br />

Global CKM Fit without <strong>the</strong> respective parameter in <strong>the</strong> fit. The numerical results<br />

<strong>of</strong> <strong>the</strong> relevant observables and model parameters are summarized in Table 5.3 & 5.4.<br />

η<br />

1.5<br />

1<br />

0.5<br />

0<br />

-0.5<br />

-1<br />

excluded area has CL > 0.95<br />

εK<br />

γ<br />

sin2β<br />

V /V ub cb<br />

α<br />

γ<br />

α<br />

excluded at CL > 0.95<br />

CKM<br />

f i t t e r<br />

ICHEP 2006<br />

γ<br />

sol. w/ cos2β<br />

< 0<br />

(excl. at CL > 0.95)<br />

-1.5<br />

-1 -0.5 0 0.5 1 1.5 2<br />

ρ<br />

β<br />

α<br />

Δms<br />

Δmd<br />

& Δm<br />

Figure 5.3: Confidence level in <strong>the</strong> (¯ρ,¯η) plane obtained from <strong>the</strong> Standard Global CKM Fit<br />

(red bordered yellow area) and from <strong>the</strong> individual constraints (colored belts). The shaded<br />

areas indicate 95 % CL allowed regions.<br />

d<br />

εK

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