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An overview of $\eta$ and $\eta^{\prime}$ decays at BESIII
- Source :
- Chinese Physics C 42(4),042002(2018)
- Publication Year :
- 2017
-
Abstract
- The world's largest sample of 1.31 billion $J/\psi$ events accumulated at the BESIII detector, provides a unique opportunity to investigate $\eta$ and $\eta^\prime$ physics via two body $J/\psi$ radiative or hadronic decays. For many $\eta^\prime$ decay channels the low background data samples are up to three orders of magnitude larger than collected in any previous experiment. Here we review the most significant results on $\eta$ and $\eta^\prime$ obtained at BESIII so far. The analyses range from detailed studies of the common decays dynamics, observations of new radiative and Dalitz decays, and search for rare/forbidden decays with sensitivity up to $\cal{B}\sim 10^{-5}$. Finally, prospects of the forthcoming runs at $J/\psi$ peak for the $\eta$ and $\eta^\prime$ physics are discussed.<br />Comment: 17pages. 20 figures
- Subjects :
- High Energy Physics - Experiment
Subjects
Details
- Database :
- arXiv
- Journal :
- Chinese Physics C 42(4),042002(2018)
- Publication Type :
- Report
- Accession number :
- edsarx.1710.05173
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1674-1137/42/4/042002