# Study of CP violation in D->VV decay at BESIII

## TL;DR

This paper explores CP violation in D meson decays to vector mesons using triple-product correlations, aiming to detect signs of New Physics with upcoming BES-III data.

## Contribution

It proposes a method to study direct CP violation in D→VV decays through angular analysis, emphasizing the potential of BES-III data for such measurements.

## Key findings

- Potential to observe CP violation signals in D→VV decays
- Use of triple-product correlations as a probe for New Physics
- Preparation for analysis with upcoming BES-III data

## Abstract

In this paper, we intend to study the problem of CP violation in $D$ meson by $D\to VV$ decay mode in which the T violating triple-product correlation is examined. That would undoubtedly be another excellent probe of New Physics beyond Standard Model. For the neutral $D$, we focus on direct CP violation without considering $D^0-\bar D^0$ oscillation. Experimentally, by a full angular analysis one may obtain such CP violating signals, and particularly it is worth mentioning that the upcoming large $D$ data samples at BES-III in Beijing will provide a great opportunity to perform it.