# Analysis of strong decays of the charmed mesons D(2550), D(2600), D(2750) and D(2760)

**Authors:** Zhi-Gang Wang  
**arXiv:** [1009.3605](https://arxiv.org/abs/1009.3605)  
**Date:** 2010-09-19  
**Summary page:** https://www.summarizepaper.com/en/paper/1009.3605v2/

## Key points

- Zhi-Gang Wang's article analyzes strong decays of charmed mesons $D(2550)$, $D(2600)$, $D(2750)$ and $D(2760) using heavy quark effective theory in leading order approximation.
- Identifies $(D(2550), D(2600))$ as a $2S$ doublet with quantum numbers $(0^-, 1^-)$.
- Identifies $(D(2750), D(2760))$ as a $1D$ doublet with quantum numbers $(2^-, 3^-)$.
- Analysis does not support the identification of $D(2750)$ and $D(2760)$ as the same particle with spin-parity $J^P=3^-$.
- Research provides insights into properties and decay mechanisms of charmed mesons, contributing to hadron spectroscopy in high-energy physics.

## Summary

This article by Zhi-Gang Wang analyzes the strong decays of the recently discovered charmed mesons $D(2550)$, $D(2600)$, $D(2750)$ and $D(2760)$ using the heavy quark effective theory in the leading order approximation. The study identifies the $(D(2550), D(2600))$ as a $2S$ doublet with quantum numbers $(0^-, 1^-)$, and the $(D(2750), D(2760))$ as a $1D$ doublet with quantum numbers $(2^-, 3^-)$. However, it is important to note that the identification of the $D(2750)$ and $D(2760)$ as the same particle with spin-parity $J^P=3^-$ is not supported by this analysis. This research provides valuable insights into understanding the properties and decay mechanisms of these charmed mesons, contributing to our knowledge of hadron spectroscopy in high-energy physics. The findings presented in this study were published in Phys.Rev.D83:014009 (2011) and offer a significant contribution to this field.