Measurements of charm lifetimes at Belle II

Abstract

We report on absolute lifetime measurements of charmed hadrons using the data collected by the Belle II experiment between 2019 and 2021. The measured lifetimes of $D^0$, $D^{+}$, and ${\Lambda }_c^{+}$ are the most precise to date and consistent with previous measurements. Our result indicates that ${\Omega }_c^0$ is not the shortest-living singly charmed baryon.