Y.-S. Dai

activity

20002010

ψ (3770)

ψ (4040)

ψ (4160)

and

ψ (4415)

resonance parameters

118 citations · 1.3k across the 36 of their papers we have counts for

collaborators

36 papers

hep-ex2010★ 44 cited

Observation of charged kappa in J/psi -> K(892)-+Kspi+-, K(892)-+ -> Kspi-+ at BESII

BES Collaboration, M. Ablikim

Using 58 million J/psi decays obtained by BESII, a charged kappa particle is observed in the analysis of the Kspi+- system recoiling against K*(892)-+ selected in J/psi -> KsKspi+p…

hep-ex2009★ 40 cited

Study of J/Psi decays into eta Kstar Kstar-bar

The BES Collaboration, M. Ablikim

We report the first observation of $\mPJpsi \to \mPeta\mPKst\mAPKst$ decay in a $\mPJpsi$ sample of 58 million events collected with the BESII detector. The branching fraction is d…

hep-ex2009★ 75 cited

$R$ value measurements for $e^{+} e^{-}$ annihilation at 2.60, 3.07 and 3.65 GeV

The BES Collaboration, M. Ablikim

Using a data sample with a total integrated luminosity of 10.0 pb $^{- 1}$ collected at center-of-mass energies of 2.6, 3.07 and 3.65 GeV with BESII, cross sections for $e^{+} e^{-}$ anni…

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-ex2008★ 16 cited

Partial wave analysis of J/ψ\to γϕϕ

BES Collaboration

Using $5.8 \times 1 0^{7} J / ψ$ events collected in the BESII detector, the radiative decay $J / ψ \to γ ϕϕ \to γ K^{+} K^{-} K_{S}^{0} K_{L}^{0}$ is studied. The $ϕϕ$ invariant mass distribution exhibi…

hep-ex2007★ 4 cited

Direct Measurements of the Branching Fractions for Inclusive $K^{\pm}$ and Inclusive Semileptonic Decays of $D^{+}$ and $D^{0}$ Mesons

BES Collaboration

With singly-tagged $D ˉ$ samples selected from the data collected at and around 3.773 GeV with the BESII detector at the BEPC collider, we have measured the branching fractions…

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★ 16 cited

Measurements of the observed cross sections for exclusive light hadron production in e^+e^- annihilation at \sqrt{s}= 3.773 and 3.650 GeV

The BES Collaboration

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

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…

hep-ex2007★ 118 cited

Determination of the $ψ (3770)$ , $ψ (4040)$ , $ψ (4160)$ and $ψ (4415)$ resonance parameters

M. Ablikim

$R$ measurement data taken with the BESII detector at center-of-mass energies between 3.7 and 5.0 GeV is fitted to determine resonance parameters (mass, total width, electron width…

hep-ex2007★ 22 cited

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

BES Collaboration

Using the data sets of 17.3 pb $^{- 1}$ collected at $s =$ 3.773 GeV and 6.5 pb $^{- 1}$ collected at $s =$ 3.650 GeV with the BESII detector at the BEPC collider, we have…

hep-ex2006★ 9 cited

Measurement of χ_cJ--> K+K-K+K-

BES Collaboration, M. AblikimJ

Using 14M psi(2S) events taken with the BES-II detector, chi_cJ-->K+K-K+K- decays are studied. For the four-kaon final state, the branching fractions are B(chi_c0,1,2 -->K+K-K+K-)=…

hep-ex2006★ 17 cited

Search for the Rare Decays J/Psi --> Ds- e+ nu_e, J/Psi --> D- e+ nu_e, and J/Psi --> D0bar e+ e-

BES Collaboration

We report on a search for the decays J/Psi --> Ds- e+ nu_e + c.c., J/Psi --> D- e+ nu_e + c.c., and J/Psi --> D0bar e+ e- + c.c. in a sample of 5.8 * 10^7 J/Psi events collected wi…

hep-ex2006★ 69 cited

Partial wave analyses of J/psi to gamma pi^+ pi^- and gamma pi^0 pi^0

M. Ablikim

Results are presented on J/psi radiative decays to pi^+pi^- and pi^0pi^0 based on a sample of 58M J/psi events taken with the BESII detector. Partial wave analyses are carried out…

hep-ex2005★ 66 cited

A measurement of the CP-conserving component of the decay KS -> pi+ pi- pi0

NA48 Collaboration

The NA48 collaboration has measured the amplitude of the CP-conserving component of the decay KS --> pi+ pi- pi0 relative to KL --> pi+ pi- pi0. For the characteristic parameter la…

hep-ex2005★ 66 cited

Measurement of the cross section for e^+e^- -> ppbar at center-of-mass energies from 2.0 to 3.07 GeV

M. Ablikim

Cross sections for e^+e^- -> ppbar have been measured at 10 center-of-mass energies from 2.0 to 3.07 GeV by the BESII experiment at the BEPC, and proton electromagnetic form factor…

hep-ex2005★ 5 cited

Measurements of Cabibbo Suppressed Hadronic Decay Fractions of Charmed D0 and D+ Mesons

BES Collaboration

Using data collected with the BESII detector at $e^{+} e^{-}$ storage ring Beijing Electron Positron Collider, the measurements of relative branching fractions for seven Cabibbo sup…

physics.ins-det2005★ 69 cited

BESII Detector Simulation

BES Collaboration

A Monte Carlo program based on Geant3 has been developed for BESII detector simulation. The organization of the program is outlined, and the digitization procedure for simulating t…

hep-ex2004★ 40 cited

Measurement of Cross Sections for $D^{0} D ˉ^{0}$ and $D^{+} D^{-}$ Production in $e^{+} e^{-}$ Annihilation at $s = 3.773$ GeV

BES Collaboration

The cross sections for $D^{0} D ˉ^{0}$ and $D^{+} D^{-}$ production at 3.773 GeV have been measured with BES-II detector at BEPC. These measurements are made by analyzing a data sample…

hep-ex2004★ 30 cited

Direct Measurement of the Pseudoscalar Decay Constant fD+

BES Collaboration

The absolute branching fraction of $D^{+} \to μ^{+} ν$ has been directly measured by an analysis of a data sample of about 33 $p b^{- 1}$ collected around $s = 3.773$ GeV with…

hep-ex2004★ 37 cited

Direct Measurement of the Branching Fraction for the Decay of $D^{+} \to K ˉ^{0} e^{+} ν_{e}$ and Determination of $Γ (D^{0} \to K^{-} e^{+} ν_{e}) /Γ (D^{+} \to K ˉ^{0} e^{+} ν_{e})$

BES Collaboration

The absolute branching fraction for the decay $D^{+} \to K ˉ^{0} e^{+} ν_{e}$ is determined using $5321 \pm 149 \pm 160$ singly tagged $D^{-}$ sample from the data collected around 3.773 Ge…

Observation of charged kappa in J/psi -> K*(892)-+Kspi+-, K*(892)-+ -> Kspi-+ at BESII

Study of J/Psi decays into eta Kstar Kstar-bar

R value measurements for e+e− annihilation at 2.60, 3.07 and 3.65 GeV

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

Partial wave analysis of J/ψ\to γϕϕ

Direct Measurements of the Branching Fractions for Inclusive K± and Inclusive Semileptonic Decays of D+ and D0 Mesons

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

Measurements of the observed cross sections for exclusive light hadron production in e^+e^- annihilation at \sqrt{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

Determination of the ψ(3770), ψ(4040), ψ(4160) and ψ(4415) resonance parameters

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

Measurement of χ_cJ--> K+K-K+K-

Search for the Rare Decays J/Psi --> Ds- e+ nu_e, J/Psi --> D- e+ nu_e, and J/Psi --> D0bar e+ e-

Partial wave analyses of J/psi to gamma pi^+ pi^- and gamma pi^0 pi^0

A measurement of the CP-conserving component of the decay KS -> pi+ pi- pi0

Measurement of the cross section for e^+e^- -> ppbar at center-of-mass energies from 2.0 to 3.07 GeV

Measurements of Cabibbo Suppressed Hadronic Decay Fractions of Charmed D0 and D+ Mesons

BESII Detector Simulation

Measurement of Cross Sections for D0Dˉ0 and D+D− Production in e+e− Annihilation at s​=3.773 GeV

Direct Measurement of the Pseudoscalar Decay Constant fD+

Direct Measurement of the Branching Fraction for the Decay of D+→Kˉ0e+νe​ and Determination of Γ(D0→K−e+νe​)/Γ(D+→Kˉ0e+νe​)

Observation of charged kappa in J/psi -> K(892)-+Kspi+-, K(892)-+ -> Kspi-+ at BESII

$R$ value measurements for $e^{+} e^{-}$ annihilation at 2.60, 3.07 and 3.65 GeV

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

Direct Measurements of the Branching Fractions for Inclusive $K^{\pm}$ and Inclusive Semileptonic Decays of $D^{+}$ and $D^{0}$ Mesons

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 $J / ψ \to D ˉ^{0} K ˉ^{0}$

Determination of the $ψ (3770)$ , $ψ (4040)$ , $ψ (4160)$ and $ψ (4415)$ resonance parameters

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

Measurement of Cross Sections for $D^{0} D ˉ^{0}$ and $D^{+} D^{-}$ Production in $e^{+} e^{-}$ Annihilation at $s = 3.773$ GeV

Direct Measurement of the Branching Fraction for the Decay of $D^{+} \to K ˉ^{0} e^{+} ν_{e}$ and Determination of $Γ (D^{0} \to K^{-} e^{+} ν_{e}) /Γ (D^{+} \to K ˉ^{0} e^{+} ν_{e})$