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arXiv · 1303.3676

CP violation in $B^{\pm} \rightarrow π^{\pm}π^{+}π^{-}$ in the region with low invariant mass of one $π^{+}π^{-}$ pair

Zhen-Hua Zhang·Xin-Heng Guo·Ya-Dong Yang
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Abstract

Recently, the large CP asymmetries in $B^\pm\toπ^\pmπ^+π^-$ decays were found by the LHCb Collaboration to localize in the region $m_{π^+π^-}^2<0.4 \text{GeV}^2$. We find such large localized CP asymmetries may be due to the interference between a light scalar and $ρ^0(770)$ intermediate resonances. Consequently, we argue that the distribution of CP asymmetries in the Dalitz plots of three-body B decays could be very helpful for identifying the presence of the scalar resonance.

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Zhen-Hua Zhang, Xin-Heng Guo, Ya-Dong Yang. 2013-04-05. CP violation in $B^{\pm} \rightarrow π^{\pm}π^{+}π^{-}$ in the region with low invariant mass of one $π^{+}π^{-}$ pair. https://doi.org/10.1103/physrevd.87.076007

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