Speaker
Description
Recently, BESIII has collected 20 fb⁻¹ of D0D0bar data from psi(3770) decays. These naturally produced D0D0bar pairs are in a C-odd quantum-correlated state,providing a unique laboratory for measuring the strong-phase differences between D0 and D0bar decays. These strong-phase parameters are essential inputs for CP violation studies in heavy-flavour physics, particularly for determining the CKM angle gamma, extracting charm mixing parameters, and searching for indirect CP violation in the charm sector. This presentation reports recent progress on new and improved measurements of strong phase differences in $K^{0}_{S/L}hh(h=\pi,K)$, $K\pi\pi\pi$, $KK\pi\pi$ and $K\pi$ tags at BESIII, especially the first joint gamma measurement with LHCb using a novel unbinned method in $K^{0}_{S/L}hh(h=\pi,K)$ tags and the first measurement of $K\pi$ strong-phase differences using novel C-even correlated D0D0bar samples. We will also report measurements of the CP-even fractions of $\pi\pi\pi^{0}$, $KK\pi^{0}$ decays.
| 请选择分会 | 强子物理与味物理 |
|---|
