Observation of the $\psi (3686)$ decays into ${\Sigma }^{+}{\bar{\Sigma }}^{-}\omega$ and ${\Sigma }^{+}{\bar{\Sigma }}^{-}\varphi$

Abstract

Based on $(27.08\pm 0.14)\times 10^8$ $\psi (3686)$ events collected with the BESIII detector operating at the BEPCII collider, the $\psi (3686)\to {\Sigma }^{+}{\bar{\Sigma }}^{-}\omega$ and ${\Sigma }^{+}{\bar{\Sigma }}^{-}\varphi$ decays are observed for the first time with statistical significances of 13.8$\sigma$ and 7.6$\sigma$, respectively. The corresponding branching fractions are measured to be $\mathcal{B}(\psi (3686)\to {\Sigma }^{+}{\bar{\Sigma }}^{-}\omega )=(1.90\pm 0.18\pm 0.21)\times 10^{-5}$ and $\mathcal{B}(\psi (3686)\to {\Sigma }^{+}{\bar{\Sigma }}^{-}\varphi )=(2.96\pm 0.54\pm 0.41)\times 10^{-6}$, where the first uncertainties are statistical and the second systematic.

10 pages

References in corpus (8)

• Gauge Invariant Lagrangians for Free and Interacting Higher Spin Fields. A Review of the BRST formulation
• Method for detector description transformation to Unity and application in BESIII
• Observation of B0 to Lambda Lambdabar K0 and B0 to Lambda Lambdabar K*0 at Belle
• 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 $\psi (3686)\to {\bar{\Sigma }}^0\Lambda +c.c.$ and ${\chi }_{cJ(J=0,1,2)}\to \Lambda \bar{\Lambda }$
• Impact of the interference between the resonance and continuum amplitudes on vector quarkonia decay branching fraction measurements
• Measurement of $\psi (3686)\to \Lambda \bar{\Lambda }\eta$ and $\psi (3686)\to \Lambda \bar{\Lambda }{\pi }^0$ decays
• Observation of the $J/\psi$ and $\psi (3686)$ decays into $\eta {\Sigma }^{+}{\bar{\Sigma }}^{-}$

Cited by in corpus (2)

• Study of the decay ψ(3686) \to Σ^{0}\barΣ^{0}ϕ
• Observation of the decay $\psi (3686)\to {\Sigma }^0{\bar{\Sigma }}^0\omega$