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Unitarity Triangle from CP invariant quantities

K. Kleinknecht·B. Renk
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Abstract

We construct the CKM unitarity triangle from CP invariant quantities, using the coupling constant of weak decays with flavor change from b to u, and the particle - antiparticle mixing probability in the B_s and B_d systems. Also included are new measurements of the coupling V_us in Kaon decays. Of the two solutions, one agrees perfectly with the triangle constructed from CP violating processes in the K and B meson systems. The common solution yields a triangle with an area of J/2 = (1.51 +/- 0.09) x 10^{-5} and a CP violating phase gamma = 63.1^o +/- 4.0^o.

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K. Kleinknecht, B. Renk. 2006-05-30. Unitarity Triangle from CP invariant quantities. https://doi.org/10.1016/j.physletb.2006.07.015

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