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

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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.

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Keywords

Quarkoniums, Annihilation (Nuclear reactions), Electron-positron interactions

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Rights

CC BY 4.0 (Attribution), ©2017 The Authors

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