Measurement of cross sections of the interactions $e^{+}{e}^{-}\to \varphi \varphi \omega$ and $e^{+}{e}^{-}\to \varphi \varphi \varphi$ at center-of-mass energies from 4.008 to 4.600 GeV

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 $e^{+}{e}^{-}\to \varphi \varphi \omega$ and $e^{+}{e}^{-}\to \varphi \varphi \varphi$. The Born cross sections are measured and the ratio of the cross sections $\sigma (e^{+}{e}^{-}\to \varphi \varphi \omega )/\sigma (e^{+}{e}^{-}\to \varphi \varphi \varphi )$ is estimated to be $1.75\pm 0.22\pm 0.19$ 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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Cited by in corpus (5)

• Observation of a near-threshold enhancement in the $\Lambda \bar{\Lambda }$ mass spectrum from $e^{+}{e}^{-}\to \varphi \Lambda \bar{\Lambda }$ at $\sqrt{s}$ from 3.51 to 4.60 GeV
• Measurements of the branching fractions of ${\eta }_c\to K^{+}{K}^{-}{\pi }^0$, $K_S^0{K}^{\pm }{\pi }^{\mp }$,$2({\pi }^{+}{\pi }^{-}{\pi }^0)$, and $p\bar{p}$
• Measurements of $e^{+}{e}^{-}\to K_S^0{K}^{\pm }{\pi }^{\mp }{\pi }^0$ and $K_S^0{K}^{\pm }{\pi }^{\mp }\eta$ at center-of-mass energies from $3.90$ to $4.60\mathrm{GeV}$
• Cross section measurements of $e^{+}{e}^{-}\to \Phi K^{+}{K}^{-}$ and $e^{+}{e}^{-}\to \Phi K_S^0{K}_S^0$ at center-of-mass energies between 3.7730 GeV and 4.7008 GeV
• Measurement of $e^{+}{e}^{-}\to \varphi {\eta }^{\prime }$ cross sections at center-of-mass energies between 3.508 and 4.600 GeV