Sumitted to PubDB: 2022-09-21

Category: Proceeding, Visibility: Public

Tags: -

Authors	Nisar Nellikunnummel
Date	2021-12-10
Belle II Number	BELLE2-CONF-PROC-2021-024
Abstract	We report the result of $D^0$ and $D^{+}$ lifetime measurement using $\text{Dz}$ and $\text{Dp}$ decays reconstructed using $72\mathrm{f}{\mathrm{b}}^{-1}$ of data collected by the Belle II experiment at SuperKEKB asymmetric-energy $e^{+}{e}^{-}$ collider. The results, $\tau (D^0)=410.5\pm 1.1(\mathrm{s}\mathrm{t}\mathrm{a}\mathrm{t})\pm 0.8(\mathrm{s}\mathrm{y}\mathrm{s}\mathrm{t})\mathrm{f}\mathrm{s}$ and $\tau (D^{+})=1030.4\pm 4.7(\mathrm{s}\mathrm{t}\mathrm{a}\mathrm{t})\pm 3.1(\mathrm{s}\mathrm{y}\mathrm{s}\mathrm{t})\mathrm{f}\mathrm{s}$ are the most precise to date and are consistent with previous measurements.

• PANIC_Proceed_nisar.pdf (versions: 1)
  latest upload: 2024-12-02