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arXiv · 1206.5158

Direct CP Violation in Charm Decays due to Left-Right Mixing

Chuan-Hung Chen·Chao-Qiang Geng·Wei Wang
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Abstract

Motivated by the $3.8σ$ deviation from no CP violation hypothesis for the CP asymmetry (CPA) difference between $D^0\to K^+ K^-$ and $D^0\to π^+ π^-$, reported recently by LHCb and CDF, we investigate the CP violating effect due to the left-right (LR) mixing in the general LR symmetric model. In particular, in the non-manifest LR model we show that the large CPA difference could be explained, while the constraints from $(ε'/ε)_K$ and $D^0$-$\bar D^0$ are satisfied.

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Chuan-Hung Chen, Chao-Qiang Geng, Wei Wang. 2012-06-27. Direct CP Violation in Charm Decays due to Left-Right Mixing. https://doi.org/10.1016/j.physletb.2012.11.014

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