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

Qiang Zhao; Ye Cao; Yin Cheng

Resolving the polarization puzzles in D⁰to VV

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arxiv 2303.00535 v4 pith:DWFYVA5R submitted 2023-03-01 hep-ph

Resolving the polarization puzzles in D⁰to VV

Ye Cao , Yin Cheng , Qiang Zhao This is my paper

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keywords polarizationpuzzlesanalysisbesiiicabbibo-favoredcabbibo-suppressedcarrydecays

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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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Cited by 1 Pith paper

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Precise theoretical prediction on branching fractions and polarizations of $D \to V V$ decays
hep-ph 2026-04 conditional novelty 6.0

A global FAT fit to D→VV data yields predictions for 28 modes and attributes observed f∥>fL and D-wave dominance to fitted strong phases in W-exchange amplitudes.