Abstract
Using data samples collected with the BESIII detector at the BEPCII collider at six center-of-mass energies between 4.008 and 4.600 GeV, we observe the processes e+e−→ϕϕω and e+e−→ϕϕϕ. The Born cross sections are measured and the ratio of the cross sections σ(e+e−→ϕϕω)/σ(e+e−→ϕϕϕ) is estimated to be 1.75±0.22±0.19 averaged over six energy points, where the first uncertainty is statistical and the second is systematic. The results represent first measurements of these interactions.
Original language | English |
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Pages (from-to) | 78-86 |
Number of pages | 9 |
Journal | Physics Letters B |
Volume | 774 |
DOIs | |
Publication status | Published - 10-Nov-2017 |
Keywords
- ROOT-S=10.6 GEV
- ANNIHILATION
- Triple quarkonia;
- Cross section
- e(+)e(-) annihilation