QCD sum rule studies of $$s s {\bar{s}} {\bar{s}}$$ sss¯s¯ tetraquark states with $$J^{PC} = 1^{+-}$$ JPC=1+-
Abstract We apply the method of QCD sum rules to study the structure X newly observed by the BESIII Collaboration in the $$\phi \eta ^\prime $$ ϕη′ mass spectrum in 2.0–2.1 GeV region in the $$J/\psi \rightarrow \phi \eta \eta ^\prime $$ J/ψ→ϕηη′ decay. We construct all the $$s s {\bar{s}} {\bar{s}}...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2019-03-01
|
| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-019-6755-y |