Simple unitarity relations among charged current coupling constants

Details Simple unitarity relations among charged current coupling constants Simple unitarity relations among charged current coupling constants

1998-12-18

arxiv.org/abs/hep-ph/9812439v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, Latex file

Scientific paper

I suggest two new unitarity tests for the quark charged current coupling constants which are $(sin \gamma/sin \alpha) = \zeta$, and $(sin 2\gamma)/(sin 2\alpha) = - ((1-\zeta cos \beta))/(cos \beta-\zeta)$ where $\zeta$ is a CKM parameter defined in the text. These unitarity identities do not suffer some of the multi-value ambiguities. Related problems are discussed. The sign of $\Delta m_{_{B_d}}$ should satisfy the condition $\Delta m cos 2\beta < 0$.

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