K. J. Ren

activity

20212025

most citedObservation of an isoscalar resonance with exotic

J^{P C} = 1^{-+}

quantum numbers in

J / ψ \to γ η η^{'}

84 citations · 541 across the 36 of their papers we have counts for

collaborators

37 papers

hep-ex2025

Observation of the $W$ -annihilation process $D_{s}^{+} \to ω ρ^{+}$ and measurement of $D_{s}^{+} \to ϕ ρ^{+}$ in $D_{s}^{+} \to π^{+} π^{+} π^{-} π^{0} π^{0}$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

We present the first amplitude analysis and branching fraction measurement of the decay $D_{s}^{+} \to π^{+} π^{+} π^{-} π^{0} π^{0}$ , using $e^{+} e^{-}$ collision data collected with the BESIII detector…

hep-ex2024★ 8 cited

Evidence for Two Excited $Ω^{-}$ Hyperons

BESIII Collaboration, M. Ablikim, M. N. Achasov +655

Using $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of 19,fb $^{- 1}$ collected by the BESIII detector at center-of-mass energies ranging from 4.13 to 4.70,GeV, w…

hep-ex2022★ 15 cited

Observation of a New $X (3872)$ Production Process $e^{+} e^{-} \to ω X (3872)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +571

Using $4.7 f b^{- 1}$ of $e^{+} e^{-}$ collision data at center-of-mass energies from 4.661 to 4.951 GeV collected by the BESIII detector at the BEPCII collider, we observe the $X(387…

hep-ex2022★ 17 cited

Study of $e^{+} e^{-} \to Ω^{-} Ω ˉ^{+}$ at center-of-mass energies from 3.49 to 3.67 GeV

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

Using data samples of $e^{+} e^{-}$ collisions collected with the BESIII detector at eight center-of-mass energy points between 3.49 and 3.67 GeV, corresponding to an integrated luminos…

hep-ex2022★ 7 cited

Study of $e^{+} e^{-} \to γ ϕ J / ψ$ from $s = 4.600$ to $4.951$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +571

Using data samples with an integrated luminosity of $6.4$ ~fb $^{- 1}$ collected by the BESIII detector operating at the BEPCII storage ring, the process of $e^{+} e^{-} \to γ ϕ J / ψ$ is studie…

hep-ex2022★ 2 cited

Measurement of $e^{+} e^{-} \to ϕ η^{'}$ cross sections at center-of-mass energies between 3.508 and 4.600 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +592

We present a measurement of the dressed cross sections for $e^{+} e^{-} \to ϕ η^{'}$ at different center-of-mass energies between 3.508 and 4.600 GeV based on 15.1 fb$^{-1}…

hep-ex2022★ 2 cited

Observation of $e^{+} e^{-} \to π^{0} π^{0} ψ_{2} (3823)$

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

Using a data sample corresponding to an integrated luminosity of 11.3 $f b^{- 1}$ collected at center-of-mass energies from $4.23$ to $4.70$ ~GeV with the BESIII detector, we obse…

hep-ex2022★ 16 cited

Search for invisible decays of a dark photon using $e^{+} e^{-}$ annihilation data at BESIII

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

We report a search for a dark photon using $14.9$ ~fb $^{- 1}$ of $e^{+} e^{-}$ annihilation data taken at center-of-mass energies from 4.13 to 4.60~GeV with the BESIII detector operated a…

hep-ex2022★ 17 cited

Partial wave analysis of the charmed baryon hadronic decay $Λ_{c}^{+} \to Λ π^{+} π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +569

Based on $e^{+} e^{-}$ collision samples corresponding to an integrated luminosity of 4.4 $\mbox{fb$^{-1}$}$ collected with the BESIII detector at center-of-mass energies between $4.6\,…

hep-ex2022★ 10 cited

Measurement of the $C P$ -even fraction of $D^{0} \to π^{+} π^{-} π^{+} π^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +563

A measurement of the $C P$ -even fraction of the decay $D^{0} \to π^{+} π^{-} π^{+} π^{-}$ is performed with a quantum-correlated $ψ (3770) \to D D ˉ$ data sample collected by the BESI…

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★ 15 cited

Measurement of $e^{+} e^{-} \to π^{+} π^{-} D^{+} D^{-}$ cross sections at center-of-mass energies from 4.190 to 4.946 GeV

M. Ablikim, M. N. Achasov, P. Adlarson +561

Using data samples collected with the BESIII detector operating at the BEPCII storage ring, we measure the cross sections of the $e^{+} e^{-} \to π^{+} π^{-} D^{+} D^{-}$ process…

hep-ex2022★ 30 cited

Study of the Semileptonic Decay $Λ_{c}^{+} \to Λ e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +563

The measurement of the Cabibbo-favored semileptonic decay $Λ_{c}^{+} \to Λ e^{+} ν_{e}$ is reported using a $4.5 fb^{- 1}$ data sample of $e^{+} e^{-}$ annihilations collected at c…

hep-ex2022

Study of $ψ (3686) \to Λ Λ ˉ ω$

BESIII Collaboration, M. Ablikim, M. N. Achasov +551

Based on a data sample of $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, the branching fraction of $ψ(3686)\rightarrowΛ\barΛω…

hep-ex2022★ 16 cited

First Observation of the Semileptonic Decay $Λ_{c}^{+} \to p K^{-} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +563

Using $4.5 fb^{- 1}$ of $e^{+} e^{-}$ annihilation data samples collected at the center-of-mass energies ranging from 4.600~GeV to 4.699~GeV with the BESIII detector at the BEPC…

hep-ex2022★ 11 cited

Measurement of Branching Fractions of Singly Cabibbo-suppressed Decays $Λ_{c}^{+} \to Σ^{0} K^{+}$ and $Σ^{+} K_{S}^{0}$

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

Based on a sample of 4.4 $fb^{- 1}$ of $e^{+} e^{-}$ annihilation data collected in the energy region between 4.6 GeV and 4.7 GeV with the BESIII detector at BEPCII, two sin…

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★ 11 cited

Search for the lepton flavor violating decay $J / ψ \to e μ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +563

We present a search for the lepton flavor violating decay $J / ψ \to e^{\pm} μ^{\mp}$ using $8.998 \times 1 0^{9} J / ψ$ events collected with the BESIII detector at the BEPCII $e^{+} e^{-}$ st…

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

Observation of $η_{c} (2 S) \to 3 (π^{+} π^{-})$ and measurements of $χ_{c J} \to 3 (π^{+} π^{-})$ in $ψ (3686)$ radiative transitions

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

The hadronic decay $η_{c} (2 S) \to 3 (π^{+} π^{-})$ is observed with a statistical significance of 9.3 standard deviations using $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected by the…

hep-ex2022★ 32 cited

Observation of $a_{0} (1710)^{+} \to K_{S}^{0} K^{+}$ in study of the $D_{s}^{+} \to K_{S}^{0} K^{+} π^{0}$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +551

Using $e^{+} e^{-}$ annihilation data corresponding to an integrated luminosity of 6.32 fb $^{- 1}$ collected at center-of-mass energies between 4.178 GeV and 4.226 GeV with the BESIII de…

hep-ex2022★ 83 cited

Precise Measurements of Decay Parameters and $C P$ Asymmetry with Entangled $Λ - Λ ˉ$ Pairs

BESIII Collaboration, M. Ablikim, M. N. Achasov +563

Based on 10 billion $J / ψ$ events collected at the BESIII experiment, a search for $C P$ violation in $Λ$ decay is performed in the difference between $C P$ -odd decay parameters $α_{-…

Observation of the W-annihilation process Ds+​→ωρ+ and measurement of Ds+​→ϕρ+ in Ds+​→π+π+π−π0π0 decays

Evidence for Two Excited Ω− Hyperons

Observation of a New X(3872) Production Process e+e−→ωX(3872)

Study of e+e−→Ω−Ωˉ+ at center-of-mass energies from 3.49 to 3.67 GeV

Study of e+e−→γϕJ/ψ from s​=4.600 to 4.951 GeV

Measurement of e+e−→ϕη′ cross sections at center-of-mass energies between 3.508 and 4.600 GeV

Observation of e+e−→π0π0ψ2​(3823)

Search for invisible decays of a dark photon using e+e− annihilation data at BESIII

Partial wave analysis of the charmed baryon hadronic decay Λc+​→Λπ+π0

Measurement of the CP-even fraction of D0→π+π−π+π−

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

Measurement of e+e−→π+π−D+D− cross sections at center-of-mass energies from 4.190 to 4.946 GeV

Study of the Semileptonic Decay Λc+​→Λe+νe​

Study of ψ(3686)→ΛΛˉω

First Observation of the Semileptonic Decay Λc+​→pK−e+νe​

Measurement of Branching Fractions of Singly Cabibbo-suppressed Decays Λc+​→Σ0K+ and Σ+KS0​

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

Search for the lepton flavor violating decay J/ψ→eμ

Observation of χcJ​→ΛΛˉη

Observation of ηc​(2S)→3(π+π−) and measurements of χcJ​→3(π+π−) in ψ(3686) radiative transitions

Observation of a0​(1710)+→KS0​K+ in study of the Ds+​→KS0​K+π0 decay

Precise Measurements of Decay Parameters and CP Asymmetry with Entangled Λ−Λˉ Pairs

Observation of the $W$ -annihilation process $D_{s}^{+} \to ω ρ^{+}$ and measurement of $D_{s}^{+} \to ϕ ρ^{+}$ in $D_{s}^{+} \to π^{+} π^{+} π^{-} π^{0} π^{0}$ decays

Evidence for Two Excited $Ω^{-}$ Hyperons

Observation of a New $X (3872)$ Production Process $e^{+} e^{-} \to ω X (3872)$

Study of $e^{+} e^{-} \to Ω^{-} Ω ˉ^{+}$ at center-of-mass energies from 3.49 to 3.67 GeV

Study of $e^{+} e^{-} \to γ ϕ J / ψ$ from $s = 4.600$ to $4.951$ GeV

Measurement of $e^{+} e^{-} \to ϕ η^{'}$ cross sections at center-of-mass energies between 3.508 and 4.600 GeV

Observation of $e^{+} e^{-} \to π^{0} π^{0} ψ_{2} (3823)$

Search for invisible decays of a dark photon using $e^{+} e^{-}$ annihilation data at BESIII

Partial wave analysis of the charmed baryon hadronic decay $Λ_{c}^{+} \to Λ π^{+} π^{0}$

Measurement of the $C P$ -even fraction of $D^{0} \to π^{+} π^{-} π^{+} π^{-}$

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

Measurement of $e^{+} e^{-} \to π^{+} π^{-} D^{+} D^{-}$ cross sections at center-of-mass energies from 4.190 to 4.946 GeV

Study of the Semileptonic Decay $Λ_{c}^{+} \to Λ e^{+} ν_{e}$

Study of $ψ (3686) \to Λ Λ ˉ ω$

First Observation of the Semileptonic Decay $Λ_{c}^{+} \to p K^{-} e^{+} ν_{e}$

Measurement of Branching Fractions of Singly Cabibbo-suppressed Decays $Λ_{c}^{+} \to Σ^{0} K^{+}$ and $Σ^{+} K_{S}^{0}$

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 $Λ \to nγ$

Search for the lepton flavor violating decay $J / ψ \to e μ$

Observation of $χ_{c J} \to Λ Λ ˉ η$

Observation of $η_{c} (2 S) \to 3 (π^{+} π^{-})$ and measurements of $χ_{c J} \to 3 (π^{+} π^{-})$ in $ψ (3686)$ radiative transitions

Observation of $a_{0} (1710)^{+} \to K_{S}^{0} K^{+}$ in study of the $D_{s}^{+} \to K_{S}^{0} K^{+} π^{0}$ decay

Precise Measurements of Decay Parameters and $C P$ Asymmetry with Entangled $Λ - Λ ˉ$ Pairs