Search results for "Triple quarkonia"

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Measurement of cross sections of the interactions e+e−→ ϕϕω and e+e−→ ϕϕϕ at center-of-mass energies from 4.008 to 4.600 GeV

2017

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 − → ϕ ϕ ω and e + e − → ϕ ϕ ϕ . The Born cross sections are measured and the ratio of the cross sections σ ( e + e − → ϕ ϕ ω ) / σ ( e + e − → ϕ ϕ ϕ ) 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.

Nuclear and High Energy PhysicsBESIII детекторe+e- annihilationElectron–positron annihilation01 natural sciencesNOlaw.inventionNuclear physicsCross section (physics)law0103 physical sciencesCross section; e+e−annihilation; Triple quarkonia; Nuclear and High Energy Physics010306 general physicsColliderTriple quarkoniaPhysicsAnnihilationCross section010308 nuclear & particles physicse+e−annihilatione+e− annihilationlcsh:QC1-999BEPCII коллайдерe+e? annihilationCenter of massCross section; e+e- annihilation; Triple quarkonia; Nuclear and High Energy Physicslcsh:Physics
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