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arXiv · hep-ph/0304038

What can we learn from phi_1 and B_d^0 -> pi^+ pi^- ?

Tadashi Yoshikawa
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Abstract

We discuss what we can understand from $ϕ_1$ and $B^0_d\to π^+ π^- $ decay mode. Using a convention without weak phases $ϕ_2$ and $ϕ_3$, we can solve the parameters from the time-depended CP asymmetry. If we can put a condition the contribution from penguin except for the CKM factor including in the diagram is small, then we can lead the allowed region of $R_t$ or $ϕ_2$ by using the convention.

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Tadashi Yoshikawa. 2003-04-11. What can we learn from phi_1 and B_d^0 -> pi^+ pi^- ?. https://doi.org/10.1103/physrevd.68.017501

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