M. Yan

activity

20022009

most citedObservation of a near-threshold enhancement in th p pbar mass spectrum from radiative J/psi-->gamma p pbar decays

309 citations · 1k across the 25 of their papers we have counts for

collaborators

25 papers

hep-ex2009★ 4 cited

Measurement of the Branching Fraction for J/ψ-> p \bar{p}ηand p \bar{p} η^{'}

BES collaboration

Using 58 $\times 1 0^{6}$ $\jpsi$ events collected with the Beijing Spectrometer (BESII) at the Beijing Electron Positron Collider (BEPC), the branching fractions of $\jpsi$ to $p\ba…

hep-ex2008★ 6 cited

Measurements of the observed cross sections for $e^{+} e^{-} \to$ exclusive light hadrons containing $π^{0} π^{0}$ at $s = 3.773$ , 3.650 and 3.6648 GeV

BES Collaboration

By analyzing the data sets of 17.3, 6.5 and 1.0 pb $^{- 1}$ taken, respectively, at $s = 3.773$ , 3.650 and 3.6648 GeV with the BES-II detector at the BEPC collider, we measure t…

hep-ex2008★ 6 cited

Measurements of the observed cross sections for e+e -> exclusive light hadrons containing K^S_0 meson at \sqrt{s} = 3.773 and 3.650 GeV

BES Collaboration

By analyzing the data sets of 17.3 pb $^{- 1}$ taken at $s = 3.773$ GeV and of 6.5 pb $^{- 1}$ taken at $s = 3.650$ GeV with the BES-II detector at the BEPC collider, we meas…

hep-ex2007★ 11 cited

Experimental studies of the $π^{+} π^{-} π^{+} π^{-} π^{0}$ , $K^{+} K^{-} π^{+} π^{-} π^{0}$ and $p p ˉ π^{+} π^{-} π^{0}$ final states produced in $e^{+} e^{-}$ annihilation at $s =$ 3.773 and 3.650 GeV

The BES Collaboration

We report measurements of the observed cross sections for $e^{+} e^{-} \to ω π^{+} π^{-}$ , $ω K^{+} K^{-}$ , $ω p p ˉ$ , $K^{+} K^{-} ρ^{0} π^{0}$ , $K^{+} K^{-} ρ^{+} π^{-} + c . c .$ , $K^{* 0} K^{-} π^{+} π^{0} + c . c .$ , $K^{*+}K^-π^+π^-+c…

hep-ex2007★ 7 cited

First observation of J/ψand ψ(2S) decaying to n K^0_S\barΛ+c.c

BES Collaboration

The decays of $\jpsi$ and $\psip$ to $n K_{S}^{0} Λ ˉ + c . c .$ are observed and measured for the first time, and the perturbative QCD ``12%'' rule is tested, based on $5.8 \times 10^7…

hep-ex2007★ 5 cited

Search for the Rare Decays $J / ψ \to D_{S}^{-} π^{+}$ , $J / ψ \to D^{-} π^{+}$ , and $J / ψ \to D ˉ^{0} K ˉ^{0}$

BES collaboration

Rare decay modes $J / ψ \to D_{S}^{-} π^{+} + c . c .$ , $J / ψ \to D^{-} π^{+} + c . c .$ , and $J / ψ \to D ˉ^{0} K ˉ^{0} + c . c .$ are searched for using 5.77 $\times 1 0^{7}$ $J / ψ$ events col…

Measurement of the Branching Fraction for J/ψ-> p \bar{p}ηand p \bar{p} η^{'}

Measurements of the observed cross sections for e+e−→ exclusive light hadrons containing π0π0 at s​=3.773, 3.650 and 3.6648 GeV

Measurements of the observed cross sections for e+e -> exclusive light hadrons containing K^S_0 meson at \sqrt{s} = 3.773 and 3.650 GeV

Experimental studies of the π+π−π+π−π0, K+K−π+π−π0 and ppˉ​π+π−π0 final states produced in e+e− annihilation at s​= 3.773 and 3.650 GeV

First observation of J/ψand ψ(2S) decaying to n K^0_S\barΛ+c.c

Search for the Rare Decays J/ψ→DS−​π+, J/ψ→D−π+, and J/ψ→Dˉ0Kˉ0

Measurements of the observed cross sections for $e^{+} e^{-} \to$ exclusive light hadrons containing $π^{0} π^{0}$ at $s = 3.773$ , 3.650 and 3.6648 GeV

Experimental studies of the $π^{+} π^{-} π^{+} π^{-} π^{0}$ , $K^{+} K^{-} π^{+} π^{-} π^{0}$ and $p p ˉ π^{+} π^{-} π^{0}$ final states produced in $e^{+} e^{-}$ annihilation at $s =$ 3.773 and 3.650 GeV

Search for the Rare Decays $J / ψ \to D_{S}^{-} π^{+}$ , $J / ψ \to D^{-} π^{+}$ , and $J / ψ \to D ˉ^{0} K ˉ^{0}$