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In pure-penguin b¯→s¯ B→V1V2 decays (V1,2 are vector mesons), fT/fL≃1 has been observed (fT (fL) is the polarization fraction of transverse (longitudinal) decays). Explanations of this unexpectedly large result have been given within the standard model (SM) and with new physics (NP). In this Letter, we show that these two explanations can be partially distinguished through the triple products (TPʼs)...
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