Ke Liu

activity

20152026

e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-}

cross section near threshold

94 citations · 332 across the 156 of their papers we have counts for

collaborators

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7 papers · 1 filter

hep-ex2022★ 42 cited

Search for an axion-like particle in radiative $J / ψ$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +588

We search for an axion-like particle (ALP) $a$ through the process $ψ (3686) \to π^{+} π^{-} J / ψ$ , $J / ψ \to γ a$ , $a \to γ γ$ in a data sample of $(2.71 \pm 0.01) \times 1 0^{9}$ …

hep-ex2022★ 14 cited

Measurement of the Branching Fraction of the Singly Cabibbo-Suppressed Decay $Λ_{c}^{+} \to Λ K^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +564

We report a branching fraction measurement of the singly Cabibbo-suppressed decay $Λ_{c}^{+} \to Λ K^{+}$ using a data sample collected with the BESIII detector at the BEPCII storage…

hep-ex2022★ 6 cited

Evidence for the Cusp Effect in $η^{'}$ Decays into $η π^{0} π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +560

Using a sample of $4.3 \times 1 0^{5}$ $η^{'} \to η π^{0} π^{0}$ events selected from the ten billion $J / ψ$ event dataset collected with the BESIII detector, we study the decay $η^{'} \to η π^{0} π^{0}$ wit…

hep-ex2022

Measurement of the total and leptonic decay widths of the $J / ψ$ resonance with an energy scan method at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +566

Using $e^{+} e^{-}$ annihilation data sets collected with the BESIII detector, we measure the cross sections of the processes $e^{+} e^{-} \to e^{+} e^{-}$ and $e^{+} e^{-} \to μ^{+} μ^{-}$ at fifteen cent…

hep-ex2022

Measurement of the branching fraction and decay asymmetry of $Λ \to nγ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +565

The radiative hyperon decay $Λ \to nγ$ is studied using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector operating at BEPCII. The absolute branching fractio…

hep-ex2022★ 5 cited

Observation of $χ_{c J} \to Λ Λ ˉ η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +566

By analyzing $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector operating at the BEPCII collider, the decays of $χ_{c J} \to Λ Λ ˉ η$ ( $J = 0$ , 1 and 2) ar…

hep-ex2022

Cross section measurements of the processes $e^{+} e^{-} \to ω π^{0}$ and $ω η$ at center-of-mass energies between 3.773 and 4.701 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +546

The Born cross sections of the processes $e^{+} e^{-} \to ω π^{0}$ and $e^{+} e^{-} \to ω η$ are measured at center-of-mass energies between 3.773 and 4.701 GeV using a total i…

Search for an axion-like particle in radiative J/ψ decays

Measurement of the Branching Fraction of the Singly Cabibbo-Suppressed Decay Λc+​→ΛK+

Evidence for the Cusp Effect in η′ Decays into ηπ0π0

Measurement of the total and leptonic decay widths of the J/ψ resonance with an energy scan method at BESIII

Measurement of the branching fraction and decay asymmetry of Λ→nγ

Observation of χcJ​→ΛΛˉη

Cross section measurements of the processes e+e−→ωπ0 and ωη at center-of-mass energies between 3.773 and 4.701 GeV

Search for an axion-like particle in radiative $J / ψ$ decays

Measurement of the Branching Fraction of the Singly Cabibbo-Suppressed Decay $Λ_{c}^{+} \to Λ K^{+}$

Evidence for the Cusp Effect in $η^{'}$ Decays into $η π^{0} π^{0}$

Measurement of the total and leptonic decay widths of the $J / ψ$ resonance with an energy scan method at BESIII

Measurement of the branching fraction and decay asymmetry of $Λ \to nγ$

Observation of $χ_{c J} \to Λ Λ ˉ η$

Cross section measurements of the processes $e^{+} e^{-} \to ω π^{0}$ and $ω η$ at center-of-mass energies between 3.773 and 4.701 GeV