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Some comments on B -> pi pi decays

Fayyazuddin
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Abstract

Isospin analysis has been used to constrain the CP-asymmetries in B -> pi pi decays. In particular correlation between a weak phase θand a strong phase δis obtained. Further using the experimental values for the CP-average branching ratios, the following bounds on direct CP-asymmetries are obtained: -0.35+/- 0.22=< C_{π^+π^-}\leq 0; C_{π^0π^0}=-(2.4\pm 1.0) C_{π^+π^-}. Constraints on mixing induced CP-asymmetries are also discussed.

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Fayyazuddin. 2004-11-04. Some comments on B -> pi pi decays. https://arxiv.org/abs/hep-ph/0406130

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