Saved in:
| Main Author: | |
|---|---|
| Format: | Preprint |
| Published: |
2021
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2111.07571 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Table of Contents:
- Using inclusive decays of the $\rm J/ψ$, a precise determination of the number of $\rm J/ψ$ events collected with the BESIII detector is performed. For the two data sets taken in 2009 and 2012, the numbers of $\rm J/ψ$ events are recalculated to be $(224.0 \pm 1.3)\times10^6$ and $(1088.5 \pm 4.4)\times10^6$ respectively, which are in good agreement with the previous measurements. For the $\rm J/ψ$ sample taken in 2017--2019, the number of events is determined to be $(8774.0 \pm 39.4)\times10^{6}$. The total number of $\rm J/ψ$ events collected with the BESIII detector is determined to be $(10087 \pm 44)\times10^{6}$, where the uncertainty is dominated by systematic effects and the statistical uncertainty is negligible.