Updated branching ratios and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:mi>C</mml:mi> <mml:mi>P</mml:mi> </mml:mrow> </mml:math> asymmetries in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" d

Motivated by extensive new high-precision experimental data, we present an updated analysis of the two-body charm decays <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"> <a:mi>D</a:mi> <a:mo stretchy="false">→</a:mo> <a:mi>P</a:mi> <a:mi>V</a:mi> </a:math> (with <d:math xmlns:d="http://www.w3.org/1998/Math/MathML" display="inline"> <d:mi>P</d:mi> <d:mo>=</d:mo> <d:mi>π</d:mi> <d:mo>,</d:mo> <d:mi>K</d:mi> <d:mo>,</d:mo> <d:msup> <d:mi>η</d:mi> <d:mrow> <d:mo stretchy="false">(</d:mo> <d:mo>′</d:mo> <d:mo stretchy="false">)</d:mo> </d:mrow> </d:msup> </d:math> and <h:math xmlns:h="http://www.w3.org/1998/Math/MathML" display="inline"> <h:mi>V</h:mi> <h:mo>=</h:mo> <h:mi>ρ</h:mi> <h:mo>,</h:mo> <h:msup> <h:mi>K</h:mi> <h:mo>*</h:mo> </h:msup> <h:mo>,</h:mo> <h:mi>ω</h:mi> <h:mo>,</h:mo> <h:mi>ϕ</h:mi> </h:math> ) within the factorization-assisted topological-amplitude (FAT) approach. In the framework, flavor SU(3) symmetry breaking effect is incorporated into the topological amplitudes, allowing the nonfactorizable contributions from topological diagrams to be expressed as a minimal set of universal parameters determined through a global fit to experimental data. Thanks to the sufficient data with high precision, we are now able to quantify the nonfactorizable contribution of so-called “factorization” <j:math xmlns:j="http://www.w3.org/1998/Math/MathML" display="inline"> <j:mi>T</j:mi> </j:math> diagram, which is essential for explaining the observed branching ratios. The parameters for the <l:math xmlns:l="http://www.w3.org/1998/Math/MathML" display="inline"> <l:mi>C</l:mi> </l:math> , <n:math xmlns:n="http://www.w3.org/1998/Math/MathML" display="inline"> <n:mi>E</n:mi> </n:math> , and <p:math xmlns:p="http://www.w3.org/1998/Math/MathML" display="inline"> <p:mi>A</p:mi> </p:math> diagrams are also updated with significant improved precision, and notably, the resulting strong phases differ substantially from those in the earlier FAT analysis. We find that the <r:math xmlns:r="http://www.w3.org/1998/Math/MathML" display="inline"> <r:mi>C</r:mi> </r:math> topological amplitude features substantial nonfactorizable effects in the charm sector. These refined parameters enable predictions of significantly improved accuracy, yielding branching ratios in good agreement with current data and the latest results in topological diagram approach, and the predicted direct <t:math xmlns:t="http://www.w3.org/1998/Math/MathML" display="inline"> <t:mrow> <t:mi>C</t:mi> <t:mi>P</t:mi> </t:mrow> </t:math> asymmetries differ distinctly form previous FAT results due to updated strong phases. In several modes, the <v:math xmlns:v="http://www.w3.org/1998/Math/MathML" display="inline"> <v:mrow> <v:mi>C</v:mi> <v:mi>P</v:mi> </v:mrow> </v:math> asymmetries are predicted to reach <x:math xmlns:x="http://www.w3.org/1998/Math/MathML" display="inline"> <x:mi mathvariant="script">O</x:mi> <x:mo stretchy="false">(</x:mo> <x:msup> <x:mn>10</x:mn> <x:mrow> <x:mo>−</x:mo> <x:mn>3</x:mn> </x:mrow> </x:msup> <x:mo stretchy="false">)</x:mo> </x:math> , thereby making them promising observables for future high-precision experiments at STCF, BES III, LHCb, and Belle II. Predictions for unobserved decay modes, especially those with branching fractions of order <cb:math xmlns:cb="http://www.w3.org/1998/Math/MathML" display="inline"> <cb:mrow> <cb:msup> <cb:mrow> <cb:mn>10</cb:mn> </cb:mrow> <cb:mrow> <cb:mo>−</cb:mo> <cb:mn>4</cb:mn> </cb:mrow> </cb:msup> <cb:mo>∼</cb:mo> <cb:msup> <cb:mrow> <cb:mn>10</cb:mn> </cb:mrow> <cb:mrow> <cb:mo>−</cb:mo> <cb:mn>3</cb:mn> </cb:mrow> </cb:msup> </cb:mrow> </cb:math> , are also provided for forthcoming experimental tests.