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Shedding Light on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>C</mml:mi><mml:mi>P</mml:mi></mml:math>Violation in the Charm System via<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>D</mml:mi><mml:mo>→</mml:mo><mml:mi>V</mml:mi><mml:mi>γ</mml:mi></mml:math>Decays
Recent evidence for direct $CP$ violation in nonleptonic charm decays cannot be easily accommodated within the standard model. On the other hand, it fits well in new physics models generating $CP$ violating $\ensuremath{\Delta}C=1$ chromomagnetic dipole operators. We show that in these frameworks sizable direct $CP$ asymmetries in radiative $D\ensuremath{\rightarrow}{P}^{+}{P}^{\ensuremath{-}}\ensuremath{\gamma}$ decays …