Determination of the number of $J/\psi$ events with inclusive $J/\psi$ decays

Abstract

A measurement of the number of $J/\psi$ events collected with the BESIII detector in 2009 and 2012 is performed using inclusive decays of the $J/\psi$ . The number of $J/\psi$ events taken in 2009 is recalculated to be $(223.7\pm 1.4)\times 10^6$, which is in good agreement with the previous measurement, but with significantly improved precision due to improvements in the BESIII software. The number of $J/\psi$ events taken in 2012 is determined to be $(1086.9\pm 6.0)\times 10^6$. In total, the number of $J/\psi$ events collected with the BESIII detector is measured to be $(1310.6\pm 7.0)\times 10^6$, where the uncertainty is dominated by systematic effects and the statistical uncertainty is negligible.

10 pages, 6 figures

References in corpus (1)

• Trigger efficiencies at BES III

Cited by in corpus (47)

• Number of $J/\psi$ events at BESIII
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• An amplitude analysis of the ${\pi }^0{\pi }^0$ system produced in radiative $J/\psi$ decays
• Study of $J/\psi$ and $\psi (3686)$ decay to $\Lambda \bar{\Lambda }$ and ${\Sigma }^0{\bar{\Sigma }}^0$ final states
• Study of $J/\psi$ and $\psi (3686)\to \Sigma (1385{)}^0\bar{\Sigma }(1385{)}^0$ and ${\Xi }^0{\bar{\Xi }}^0$
• Precision Study of ${\eta }^{\prime }\to \gamma {\pi }^{+}{\pi }^{-}$ Decay Dynamics
• Amplitude analysis of the $K_S{K}_S$ system produced in radiative $J/\psi$ decays
• Measurement of cross section for $e^{+}{e}^{-}\to {\Xi }^0{\bar{\Xi }}^0$ near threshold
• Observation of $a_0^0(980)$-$f_0(980)$ Mixing
• Measurement of absolute branching fraction of the inclusive decay ${\Lambda }_c^{+}\to \Lambda +X$
• Measurement of $\mathcal{B}(J/\psi \to {\eta }^{\prime }{e}^{+}{e}^{-}$) and search for a dark photon
• Observation of $h_1(1380)$ in the $J/\psi \to {\eta }^{\prime }K\bar{K}\pi$ Decay
• Search for the decay $D^0\to {\pi }^0\nu \bar{\nu }$
• Partial-wave analysis of $J/\psi \to K^{+}{K}^{-}{\pi }^0$
• Observation and study of the decay $J/\psi \to \varphi \eta {\eta }^{\prime }$
• Partial wave analysis of $J/\psi \to \gamma {\eta }^{\prime }{\eta }^{\prime }$
• Search for the charged lepton flavor violating decay $J/\psi \to e\tau$
• Search for invisible decays of $\omega$ and $\varphi$ with $J/\psi$ data at BESIII
• Observation of the doubly radiative decay ${\eta }^{\prime }\to \gamma \gamma {\pi }^0$
• Study of $\eta (1475)$ and $X(1835)$ in radiative $J/\psi$ decays to $\gamma \varphi$
• Study of $J/\psi$ and $\psi (3686)$ decays to ${\pi }^{+}{\pi }^{-}{\eta }^{\prime }$
• Precision measurement of the branching fractions of ${\eta }^{\prime }$ decays
• Search for Baryon and Lepton Number Violation in $J/\psi \to {\Lambda }_c^{+}{e}^{-}+c.c.$
• Observation of ${\eta }^{\prime }\to {\pi }^{+}{\pi }^{-}{\mu }^{+}{\mu }^{-}$
• Observation of $\psi (3686)\to p\bar{p}{\eta }^{\prime }$ and improved measurement of $J/\psi \to p\bar{p}{\eta }^{\prime }$
• Search for the lepton flavor violating decay $J/\psi \to e\mu$
• Search for the decay ${\eta }^{\prime }\to \gamma \gamma \eta$
• Search for the rare decays $J/\psi \to D^0{e}^{+}{e}^{-}+c.c.$ and $\psi (3686)\to D^0{e}^{+}{e}^{-}+c.c.$
• Measurement of {\boldmath $J/\psi \to \Xi (1530{)}^{-}{\bar{\Xi }}^{+}$} and evidence for the radiative decay {\boldmath $\Xi (1530{)}^{-}\to \gamma {\Xi }^{-}$}
• Search for the hyperon semileptonic decay ${\Xi }^{-}\to {\Xi }^0{e}^{-}\overline{{\nu }_e}$
• Helicity Amplitude Analysis of $J/\psi$ and $\psi (2S)\to \Xi (1530)\bar{\Xi }(1530)$
• Observation of ${\eta }_c\to \omega \omega$ in $J/\psi \to \gamma \omega \omega$
• Search for the lepton number violating decay ${\Sigma }^{-}\to p{e}^{-}{e}^{-}$ and the rare inclusive decay ${\Sigma }^{-}\to {\Sigma }^{+}X$
• Search for the rare decay ${\eta }^{\prime }\to {\pi }^0{\pi }^0{\pi }^0{\pi }^0$ at BESIII
• Stringent test of $CP$ symmetry in ${\Sigma }^{+}$ hyperon decays
• Branching fraction measurement of $J/\psi \to K_S{K}_L$ and search for $J/\psi \to K_S{K}_S$
• Search for the $X(2370)$ and observation of ${\eta }_c\to \eta \eta {\eta }^{\prime }$ in $J/\psi \to \gamma \eta \eta {\eta }^{\prime }$
• Measurement of the branching fraction of $J/\psi \to \omega {\eta }^{\prime }{\pi }^{+}{\pi }^{-}$ and search for $J/\psi \to \omega X(1835),X(1835)\to {\eta }^{\prime }{\pi }^{+}{\pi }^{-}$ decay
• Measurement of the absolute branching fractions of Jpsi to gamma eta and eta decay modes
• Measurement of the Branching Fraction of and Search for a CP-Violating Asymmetry in ${\eta }^{\prime }\to {\pi }^{+}{\pi }^{-}{e}^{+}{e}^{-}$ at BESIII
• Improved measurements of branching fractions for ${\eta }_c\to \varphi \varphi$ and $\omega \varphi$
• Symmetry analysis of charmonium two-body decay
• Photon-pion transition form factor of two photon process at BESIII from light-cone quantum field theory
• Search for intermediate resonances and dark gauge bosons in $J/\psi \to \gamma {\pi }^0{\eta }^{\prime }$
• Observation of ${\chi }_{c2}\to {\eta }^{\prime }{\eta }^{\prime }$ and ${\chi }_{c0,2}\to \eta {\eta }^{\prime }$
• Study of the rare decay $J/\psi \to 2\gamma +hadrons$ at the BESIII
• Amplitude analysis and branching fraction measurement of $J/\psi \to \Lambda {\bar{\Sigma }}^0\eta +c.c$