Observation of $\psi (3686)\to p\bar{p}\varphi$

Abstract

Using a data sample of $4.48\times 10^8$ $\psip$ events collected with the BESIII detector, we present a first observation of $\psi (3686)\to p\bar{p}\varphi$, and we measure its branching fraction to be $[6.06\pm 0.38($stat.$)\pm 0.48($syst.$)]\times 10^{-6}$. In contrast to the earlier discovery of a threshold enhancement in the $p\bar{p}$-mass spectrum of the channel $J/\psi \to \gamma p\bar{p}$, denoted as $X(p\bar{p})$, we do not find a similar enhancement in $\psi (3686)\to p\bar{p}\varphi$. An upper limit of $1.82\times 10^{-7}$ at the $90\%$ confidence level on the branching fraction of $\psi (3686)\to X(p\bar{p})\varphi \to p\bar{p}\varphi$ is obtained.

References in corpus (23)

• Design and Construction of the BESIII Detector
• The Precision Monte Carlo Event Generator KK For Two-Fermion Final States In e+e- Collisions
• Coherent Exclusive Exponentiation For Precision Monte Carlo Calculations
• Observation of a near-threshold enhancement in th p pbar mass spectrum from radiative J/psi-->gamma p pbar decays
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• Study of ${\chi }_{cJ}$ radiative decays into a vector meson
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• Near threshold enhancement of the ppbar mass spectrum in J/Psi decay
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• A New State of Baryonium
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• Determination of the number of $\psi (3686)$ events at BESIII
• Radiative Decays of the Upsilon(1S) to a Pair of Charged Hadrons
• Observation of a ppb mass threshoud enhancement in ψ^\prime\toπ^+π^-J/ψ(J/ψ\toγp\bar{p}) decay
• Baryonium with a phenomenological skyrmion-type potential
• Study of Jψdecaying into ωp \bar p
• Observation of Thirteen New Exclusive Multi-Body Hadronic Decays of the $\psi (2S)$
• Hints for the existence of hexaquark states in the baryon-antibaryon sector
• Psi(2S) two- and three-body hadronic decays
• Study of $J/\psi \to p\bar{p}\varphi$ at BESIII
• Observation of $\psi (3686)\to p\bar{p}{\eta }^{\prime }$ and improved measurement of $J/\psi \to p\bar{p}{\eta }^{\prime }$

Cited by in corpus (3)

• Partial wave analysis of $\psi (3686)\to K^{+}{K}^{-}\eta$
• Measurement of $e^{+}{e}^{-}\to \Lambda \bar{\Lambda }\eta$ from 3.5106 to 4.6988 GeV and study of $\Lambda \bar{\Lambda }$ mass threshold enhancement
• Search for the decays $X(3872)\to K_S^0{K}^{\pm }{\pi }^{\mp }$ and $K^{\ast }(892)\bar{K}$ at BESIII