H. H. Li

activity

20042024

J / ψ \to ϕ π^{+} π^{-}

and

ϕ K^{+} K^{-}

280 citations · 953 across the 26 of their papers we have counts for

collaborators

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25 papers · 1 filter

hep-ex2006★ 38 cited

Pseudoscalar production at omega omega threshold in J/psi -> gamma omega omega

Bes Collaboration

The decay channel J/ψ->gamma omega omega, omega -> pi+ pi- pi0 is analyzed using a sample of 5.8x10^7 J/psi events collected with the BESII detector. The omega omega invariant mass…

hep-ex2006★ 90 cited

Observation of a near-threshold enhancement in the ωϕmass spectrum from the doubly OZI suppressed decay J/ψ\to γωϕ

BES Collaboration

An enhancement near threshold is observed in the ωϕinvariant mass spectrum from the doubly OZI suppressed decays of J/ψ\to γωϕ, based on a sample of 5.8 X 10^7 J/ψevents collected…

hep-ex2005★ 3 cited

Measurement of branching fractions for the inclusive Cabibbo-favored ~K0(892) and Cabibbo-suppressed K0(892) decays of neutral and charged D mesons

M. Ablikim, BES Collaboration

The branching fractions for the inclusive Cabibbo-favored ~K*0 and Cabibbo-suppressed K*0 decays of D mesons are measured based on a data sample of 33 pb-1 collected at and around…

hep-ex2005★ 11 cited

Measurements of $J ψ$ decays into $ω π^{0}$ , $ω η$ , and $ω η^{'}$

M. Ablikim

Based on $5.8 \times 1 0^{7} J ψ$ events collected with BESII at the Beijing Electron-Positron Collider (BEPC), the decay branching fractions of $J ψ \to ω π^{0}$ , $ω η$ , and $ω η^{'}$ are measur…

hep-ex2005★ 15 cited

Measurement of the branching fractions for $J / ψ \to γ π^{0}$ , $γ η$ and $γ η^{'}$

M. Ablikim, J. Z. Bai, BES Collaboration

The decay modes $\jpsi\arγπ^0, γη$ and $γ\etap$ are analyzed using a data sample of 58 million $\jpsi$ decays collected with the BESII detector at BEPC. The branching fractions are…

hep-ex2005★ 19 cited

Search for psi(3770)\raρπat the BESII detector at the Beijing Electron-Positron Collider

The BES Collaboration, M. Ablikim

Non- $D D ˉ$ decay $\psppto \rhopi$ is searched for using a data sample of $(17.3 \pm 0.5) p b^{- 1}$ taken at the center-of-mass energy of 3.773 GeV by the BESII detector at the BE…

hep-ex2005★ 15 cited

Obervation of χ_{cJ}--> omega omega decays

BES Collaboration, M. Ablikim

Decays of $χ_{c0,2}\ar\ww$ are observed for the first time using a sample of $14.0 \times 1 0^{6}$ $ψ (2 S)$ events collected with the BESII detector. The branching ratios are determined…

hep-ex2005★ 36 cited

Study of J/psi decays to Lambda Lambdabar and Sigma0 Sigma0bar

BES Collaboration, M. Ablikim

The branching ratios and Angular distributions for J/psi decays to Lambda Lambdabar and Sigma0 Sigma0bar are measured using BESII 58 million J/psi.

hep-ex2005★ 105 cited

Evidence for kappa Meson Production in J/psi -> bar{K}^*(892)^0K^+pi^- Process

M. Ablikim

Based on 58 million BESII J/psi events, the bar{K}^*(892)^0K^+pi^- channel in K^+K^-pi^+pi^- is studied. A clear low mass enhancement in the invariant mass spectrum of K^+pi^- is o…

hep-ex2005

First Measurements of eta_c Decaying into K^+K^-2(pi^+pi^-) and 3(pi^+pi^-)

BES Collaboration, M. Ablikim

The decays of eta_c to K^+K^-2(pi^+pi^-) and 3(pi^+pi^-) are observed for the first time using a sample of 5.8X10^7 J/ψevents collected by the BESII detector. The product branching…

hep-ex2005★ 20 cited

Precise measurement of spin-averaged chi_{cJ}(1P) mass using photon conversions in psi(2S) -> gamma chi_{cJ}

M. Ablikim, J. Z. Bai

Using photon conversions to e^+e^- pairs, the energy spectrum of inclusive photons from psi(2S) radiative decays is measured by BESII at the Beijing Electron-Positron Collider. The…

hep-ex2005★ 4 cited

Measurement of the branching fractions of psi(2S) -> 3(pi+pi-) and J/psi -> 2(pi+pi-)

M. Ablikim

Using data samples collected at sqrt(s) = 3.686GeV and 3.650GeV by the BESII detector at the BEPC, the branching fraction of psi(2S) -> 3(pi+pi-) is measured to be [4.83 +- 0.38(st…

hep-ex2005★ 27 cited

Observation of p pbar pi^0 and p pbar eta in psi' decays

M. Ablikim

The processes psi'-->p pbar pi^0 and psi'-->p pbar eta are studied using a sample of 14 million psi' decays collected with the Beijing Spectrometer at the Beijing Electron-Positron…

hep-ex2004★ 7 cited

Measurements of J/psi Decays into 2(pi+pi-)eta and 3(pi+pi-)eta

M. Ablikim

Based on a sample of 5.8X 10^7 J/psi events taken with the BESII detector, the branching fractions of J/psi--> 2(pi+pi-)eta and J/psi-->3(pi+pi-)eta are measured for the first time…

hep-ex2004★ 280 cited

Resonances in $J / ψ \to ϕ π^{+} π^{-}$ and $ϕ K^{+} K^{-}$

M. Ablikim

A partial wave analysis is presented of $J / ψ \to ϕ π^{+} π^{-}$ and $ϕ K^{+} K^{-}$ from a sample of 58M $J / ψ$ events in the BES II detector. The $f_{0} (980)$ is observed clearly in both sets of…

hep-ex2004★ 29 cited

Measurement of the final states $ω π^{0}$ , $ρ η$ , and $ρ η^{^{'}}$ from $\psip$ electromagnetic decays and $\ee$ annihilations

M. Ablikim

Cross sections and form factors for $\ee \to \wpi$, $ρ η$ , and $ρ\etap$ at center of mass energies of 3.650, 3.686, and 3.773 GeV are measured using data samples collected with the…

hep-ex2004★ 38 cited

Study of $J / ψ \to ω K^{+} K^{-}$

M. Ablikim

New data are presented on $J / ψ \to ω K^{+} K^{-}$ from a sample of 58M $J / ψ$ events in the upgraded BES II detector at the BEPC. There is a conspicuous signal for $f_{0} (1710) \to K^{+} K^{-}$ a…

hep-ex2004★ 19 cited

Search for K_S K_L in psi'' decays

M. Ablikim

K_S K_L from psi'' decays is searched for using the psi'' data collected by BESII at BEPC, the upper limit of the branching fraction is determined to be B(psi''--> K_S K_L) < 2.1\t…

hep-ex2004★ 3 cited

First Measurement of the Branching Ratio of $J / ψ \to γ f_{2} (1270) f_{2} (1270)$

BES Collaboration, M. Ablikim

Using 58 million $J / ψ$ events taken with the BES II detector at the Beijing Electron Positron Collider, a new decay mode $J / ψ \to γ f_{2} (1270) f_{2} (1270) \to γ π^{+} π^{-} π^{+} π^{-}$ is obser…

hep-ex2004★ 19 cited

Measurements of $ψ (2 S)$ decays into $ϕ π^{0}$ , $ϕ η$ , $ϕ η^{^{'}}$ , $ω η$ , and $ω η^{^{'}}$

BES Collaboration

Decays of the $ψ (2 S)$ into Vector plus Pseudoscalar meson final states have been studied with 14 million $ψ (2 S)$ events collected with the BESII detector. Branching fractions of $ψ…

hep-ex2004★ 26 cited

Observation of the decay $\psip\rar\kstark$

BES Collaboration, M. Ablikim

Using 14 million $ψ (2 S)$ events collected with the BESII detector, branching fractions of $\psip\rar\kstarkpm$ and $\kstarknn$ are determined to be: $\calB(\psip\rar\kstarkpm)=(2.9…

hep-ex2004★ 29 cited

Evidence for f0(980)f0(980) production in chi_c0 decays

BES Collaboration, M. Ablikim

Using a sample of 14 million $ψ (2 S)$ events accumulated with the BES II detector, evidence for $f_{0} (980) f_{0} (980)$ production in $χ_{c 0}$ decays is obtained for the first time; the…

hep-ex2004★ 15 cited

Study of psi(2S) decays to X J/psi

BES Collaboration, M. Ablikim

Using J/psi -> mu^+ mu^- decays from a sample of approximately 4 million psi(2S) events collected with the BESI detector, the branching fractions of psi(2S) -> eta J/psi, pi^0 pi^0…

hep-ex2004★ 101 cited

Search for the Pentaquark State in $ψ (2 S)$ and $J / ψ$ Decays to $K_{S}^{0} p K^{-} n ˉ$ and $K_{S}^{0} p ˉ K^{+} n$

BES Collaboration, J. Z. Bai

Results are presented on $ψ (2 S)$ and $J / ψ$ hadronic decays to $K_{S}^{0} p K^{-} n ˉ$ and $K_{S}^{0} p ˉ K^{+} n$ final states from data samples of 14 million $ψ (2 S)$ and 58 million $J / ψ$ eve…

Pseudoscalar production at omega omega threshold in J/psi -> gamma omega omega

Observation of a near-threshold enhancement in the ωϕmass spectrum from the doubly OZI suppressed decay J/ψ\to γωϕ

Measurement of branching fractions for the inclusive Cabibbo-favored ~K*0(892) and Cabibbo-suppressed K*0(892) decays of neutral and charged D mesons

Measurements of Jψ decays into ωπ0, ωη, and ωη′

Measurement of the branching fractions for J/ψ→γπ0, γη and γη′

Search for psi(3770)\raρπat the BESII detector at the Beijing Electron-Positron Collider

Obervation of χ_{cJ}--> omega omega decays

Study of J/psi decays to Lambda Lambdabar and Sigma0 Sigma0bar

Evidence for kappa Meson Production in J/psi -> bar{K}^*(892)^0K^+pi^- Process

First Measurements of eta_c Decaying into K^+K^-2(pi^+pi^-) and 3(pi^+pi^-)

Precise measurement of spin-averaged chi_{cJ}(1P) mass using photon conversions in psi(2S) -> gamma chi_{cJ}

Measurement of the branching fractions of psi(2S) -> 3(pi+pi-) and J/psi -> 2(pi+pi-)

Observation of p pbar pi^0 and p pbar eta in psi' decays

Measurements of J/psi Decays into 2(pi+pi-)eta and 3(pi+pi-)eta

Resonances in J/ψ→ϕπ+π− and ϕK+K−

Measurement of the final states ωπ0, ρη, and ρη′ from $\psip$ electromagnetic decays and $\ee$ annihilations

Study of J/ψ→ωK+K−

Search for K_S K_L in psi'' decays

First Measurement of the Branching Ratio of J/ψ→γf2​(1270)f2​(1270)

Measurements of ψ(2S) decays into ϕπ0, ϕη, ϕη′, ωη, and ωη′

Observation of the decay $\psip\rar\kstark$

Evidence for f0(980)f0(980) production in chi_c0 decays

Study of psi(2S) decays to X J/psi

Search for the Pentaquark State in ψ(2S) and J/ψ Decays to KS0​pK−nˉ and KS0​pˉ​K+n

Measurement of branching fractions for the inclusive Cabibbo-favored ~K0(892) and Cabibbo-suppressed K0(892) decays of neutral and charged D mesons

Measurements of $J ψ$ decays into $ω π^{0}$ , $ω η$ , and $ω η^{'}$

Measurement of the branching fractions for $J / ψ \to γ π^{0}$ , $γ η$ and $γ η^{'}$

Resonances in $J / ψ \to ϕ π^{+} π^{-}$ and $ϕ K^{+} K^{-}$

Measurement of the final states $ω π^{0}$ , $ρ η$ , and $ρ η^{^{'}}$ from $\psip$ electromagnetic decays and $\ee$ annihilations

Study of $J / ψ \to ω K^{+} K^{-}$

First Measurement of the Branching Ratio of $J / ψ \to γ f_{2} (1270) f_{2} (1270)$

Measurements of $ψ (2 S)$ decays into $ϕ π^{0}$ , $ϕ η$ , $ϕ η^{^{'}}$ , $ω η$ , and $ω η^{^{'}}$

Search for the Pentaquark State in $ψ (2 S)$ and $J / ψ$ Decays to $K_{S}^{0} p K^{-} n ˉ$ and $K_{S}^{0} p ˉ K^{+} n$