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arXiv · 2303.00535

Resolving the polarization puzzles in $D^0\to VV$

Ye Cao·Yin Cheng·Qiang Zhao
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Abstract

We carry out a systematic analysis of the Cabbibo-favored (CF) and singly Cabbibo-suppressed (SCS) decays of $D^0\to VV$, and demonstrate that the long-distance mechanism due to the final-state interactions (FSIs) can provide a natural explanation for these mysterious polarization puzzles observed in $D^0\to VV$ in experiments. More observables, which can be measured at BESIII and possibly at LHCb, are also suggested.

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Ye Cao, Yin Cheng, Qiang Zhao. 2023-03-01. Resolving the polarization puzzles in $D^0\to VV$. https://arxiv.org/abs/2303.00535

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