P. Li

most citedPrecise Measurement of Matter-Antimatter Asymmetry with Entangled Hyperon Antihyperon Pairs

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hep-ex2026

Measurement of Branching Fraction and Transition Magnetic Moment of the Hyperon Dalitz Decay $Σ^{0} \to Λ e^{+} e^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Based on a data sample of 10 billion $J / ψ$ events collected with the BESIII detector operating at the BEPCII collider, the Dalitz decay $Σ^{0} \to Λ e^{+} e^{-}$ is studied experim…

hep-ex2026

Measurement of Born Cross Section for $e^{+} e^{-} \to K_{S}^{0} Ξ ˉ^{+} Σ^{-} + c.c.$ at $s = 3.51 - 4.95$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +759

Using $e^{+} e^{-}$ collision data collected with the BESIII detector at the BEPCII collider corresponding to a total integrated luminosity of 44~fb $^{- 1}$ , we present the first measure…

hep-ex2026

First Measurement of the Relative Phase between Proton Psionic Form Factors

BESIII Collaboration, M. Ablikim, M. N. Achasov +754

The relative phase between the time-like form factors of the proton is a crucial observable for a complete understanding of its internal structure, yet it has remained unmeasured d…

hep-ex2026

Proof of principle for nucleon polarization measurement at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +754

A novel technique for measuring the spin polarization of final-state nucleons in a general-purpose spectrometer is validated. Using $10.09 \times 1 0^{9}$ $J / ψ$ events at BESIII, the…

hep-ex2026

Search for an isoscalar partner of the $Z_{c} (3900)$ in $e^{+} e^{-} \to π^{+} π^{-} η J / ψ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +684

Using a data sample corresponding to an integrated luminosity of 20.3 fb $^{- 1}$ collected at center-of-mass energies from 4.18 to 4.95 GeV with the BESIII detector, we observe the…

hep-ex2026

Measurement of Born cross sections for $e^{+} e^{-} \to p p ˉ$ at $s = 3.510 - 4.946$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +758

We report a measurement of the Born cross section and the effective form factor for the $e^{+} e^{-} \to p p ˉ$ reaction at 47 center-of-mass energies between 3.510 and 4.946 GeV. The…

hep-ex2026

Observation of $ψ (3770) \to p p ˉ$ and Measurement of Electromagnetic Form Factors of Proton at $s = 3.510 - 4.946$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +758

We search for possible charmonium(-like) states decaying into the $p p ˉ$ final state by studying the Born cross sections of the $e^{+} e^{-} \to p p ˉ$ reaction, and we determine…

hep-ex2026

Measurements of branching fractions of $Λ_{c}^{+} \to Σ^{0} K_{S}^{0} π^{+}$ and $Λ_{c}^{+} \to Σ^{0} K_{S}^{0} K^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +750

Based on a data sample corresponding to an integrated luminosity of 6.4~fb $^{- 1}$ of $e^{+} e^{-}$ annihilation and collected with the BESIII detector at 13 center-of-mass energy points…

hep-ex2026

Improved measurements of the coherence factors and strong-phase differences in $D \to K^{-} π^{+} π^{+} π^{-}$ and $D \to K^{-} π^{+} π^{0}$ with quantum-correlated $D D ˉ$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +680

Improved measurements of the coherence factors and strong-phase differences in $D \to K^{-} π^{+} π^{+} π^{-}$ and $D \to K^{-} π^{+} π^{0}$ decays are reported, using quantum-correlated $D D ˉ$ pai…

hep-ex2026

Observation of a New Excited $Σ$ State in $ψ (3686) \to p ˉ K^{+} Σ^{0} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +681

Using a data sample of $(2712.4 \pm 14.3) \times 1 0^{6} ψ (3686)$ events collected with the BESIII detector, a partial-wave analysis of $ψ (3686) \to p ˉ K^{+} Σ^{0} + c . c .$ is performed. A new…

hep-ex2026

First observation of the $η_{c} \to Ξ^{0} Ξ ˉ^{0}$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +761

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector at the BEPCII collider, we report the first observation of the decay $η_{c} \to Ξ^{0} Ξ ˉ^{0}$ . T…

hep-ex2026

Study of $Λ ˉ$ - $p$ Annihilation into Light Mesons

BESIII Collaboration, M. Ablikim, M. N. Achasov +758

The annihilation of $Λ ˉ$ - $p$ into light mesons is studied using $(10.087 \pm 0.044) \times 1 0^{9}$ $J / ψ$ events collected with the BESIII detector at the BEPCII storage ring. The $\…

hep-ex2026★ 2 cited

Precise Measurement of Matter-Antimatter Asymmetry with Entangled Hyperon Antihyperon Pairs

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

A search for $C P$ violation with an entangled system of $Ξ^{-} Ξ ˉ^{+}$ pairs is performed, using $(10, 087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII experiment. A nine…

hep-ex2026

Observation of $Λ ˉ p \to K^{+} π^{+} π^{-} π^{0}$ and $Λ ˉ p \to K^{+} π^{+} π^{-} 2 π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +750

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector at a center-of-mass energy of $s = 3.097$ GeV, the antihyperon-nucleon annihilation processe…

hep-ex2026

Search for $ψ_{0} (4360) \to η ψ (2 S)$ through the process $e^{+} e^{-} \to η η ψ (2 S)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +763

Using data samples corresponding to an integrated luminosity of 0.9~fb $^{- 1}$ collected with the BESIII detector operating at the BEPCII storage ring at the center-of-mass energies…

hep-ex2026

First evidence for $D_{s}^{+} \to f_{1} (1420) e^{+} ν_{e}$ and search for $D_{s}^{+} \to f_{1} (1285) e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +706

Using $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of 7.33~ $f b^{- 1}$ recorded by the BESIII detector at center-of-mass energies between 4.128 and 4.226~$…

hep-ex2026

Search for the reaction channel $e^{+} e^{-} \to η η J / ψ$ and the isospin partner of the $Z_{c} (3900)$ at center-of-mass energies $s = 4.226 - 4.950$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +693

We search for the reaction channel $e^{+} e^{-} \to η η J / ψ$ in a data sample with center-of-mass energies from 4.226 to 4.950 GeV that was collected by the BESIII detector operating a…

hep-ex2026

First Measurement of the Absolute Branching Fraction of $η_{c} \to γ γ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +691

We apply a tag-and-probe method to precisely measure the absolute branching fraction of the decay $η_{c} \to γ γ$ with the BESIII experiment at BEPCII. Starting with a large initial s…

hep-ex2026

Measurements of the absolute branching fractions of the $Λ_{c}^{+}$ hadronic decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +722

Based on 4.5 fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected at center-of-mass energies between 4599.53 MeV and 4698.82 MeV with the BESIII detector, the absolute branching fraction…

hep-ex2026

Precise measurements of $D^{0} \to K^{-} ℓ^{+} ν_{ℓ}$ and $D^{+} \to K ˉ^{0} ℓ^{+} ν_{ℓ}$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +758

Using $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of 20.3 fb $^{- 1}$ , collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we present…

hep-ex2026

First Experimental Constraint on the Scalar Current in the $D^{0 (+)} \to K ˉ ℓ^{+} ν_{ℓ}$ Transition

BESIII Collaboration, M. Ablikim, M. N. Achasov +758

Using 20.3 fb $^{- 1}$ of $e^{+} e^{-}$ collision data taken at the center-of-mass energy of $s = 3.773$ GeV, we report the first experimental constraint on the scalar current in the…

hep-ex2026

Search for sub-GeV dark particles in $η \to π^{0} + invisible$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using (10087 $\pm$ 44) $\times$ 10 $^{6}$ $J / ψ$ events collected with the BESIII detector at the BEPCII collider at the center-of-mass energy of $s = 3.097 GeV$ , we report the…

hep-ex2025

Helicity amplitude and branching fraction measurement of $χ_{c J} \to Λ Λ ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Utilizing $2712.4 \pm 14.3$ million $ψ (3686)$ events accumulated by the BESIII experiment, we perform a partial wave analysis of $ψ (3686) \to γ χ_{c J} \to γ Λ Λ ˉ$ decay…

hep-ex2025

Study of $ϕ \to K K ˉ$ and $K_{S}^{0} - K_{L}^{0}$ Asymmetry in the Amplitude Analysis of $D_{s}^{+} \to K_{S}^{0} K_{L}^{0} π^{+}$ Decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +695

Using $e^{+} e^{-}$ annihilation data corresponding to a total integrated luminosity of 7.33 $f b^{- 1}$ collected at center-of-mass energies between 4.128 and 4.226~GeV with the BESI…

Measurement of Branching Fraction and Transition Magnetic Moment of the Hyperon Dalitz Decay Σ0→Λe+e−

Measurement of Born Cross Section for e+e−→KS0​Ξˉ+Σ−+c.c. at s​=3.51−4.95 GeV

First Measurement of the Relative Phase between Proton Psionic Form Factors

Proof of principle for nucleon polarization measurement at BESIII

Search for an isoscalar partner of the Zc​(3900) in e+e−→π+π−ηJ/ψ

Measurement of Born cross sections for e+e−→ppˉ​ at s​=3.510−4.946 GeV

Observation of ψ(3770)→ppˉ​ and Measurement of Electromagnetic Form Factors of Proton at s​=3.510−4.946 GeV

Measurements of branching fractions of Λc+​→Σ0KS0​π+ and Λc+​→Σ0KS0​K+

Improved measurements of the coherence factors and strong-phase differences in D→K−π+π+π− and D→K−π+π0 with quantum-correlated DDˉ decays

Observation of a New Excited Σ State in ψ(3686)→pˉ​K+Σ0+c.c.

First observation of the ηc​→Ξ0Ξˉ0 decay

Study of Λˉ-p Annihilation into Light Mesons

Precise Measurement of Matter-Antimatter Asymmetry with Entangled Hyperon Antihyperon Pairs

Observation of Λˉp→K+π+π−π0 and Λˉp→K+π+π−2π0

Search for ψ0​(4360)→ηψ(2S) through the process e+e−→ηηψ(2S)

First evidence for Ds+​→f1​(1420)e+νe​ and search for Ds+​→f1​(1285)e+νe​

Search for the reaction channel e+e−→ηηJ/ψ and the isospin partner of the Zc​(3900) at center-of-mass energies s​=4.226−4.950 GeV

First Measurement of the Absolute Branching Fraction of ηc​→γγ

Measurements of the absolute branching fractions of the Λc+​ hadronic decays

Precise measurements of D0→K−ℓ+νℓ​ and D+→Kˉ0ℓ+νℓ​ decays

First Experimental Constraint on the Scalar Current in the D0(+)→Kˉℓ+νℓ​ Transition

Search for sub-GeV dark particles in η→π0+invisible decay

Helicity amplitude and branching fraction measurement of χcJ​→ΛΛˉ

Study of ϕ→KKˉ and KS0​−KL0​ Asymmetry in the Amplitude Analysis of Ds+​→KS0​KL0​π+ Decays

Measurement of Branching Fraction and Transition Magnetic Moment of the Hyperon Dalitz Decay $Σ^{0} \to Λ e^{+} e^{-}$

Measurement of Born Cross Section for $e^{+} e^{-} \to K_{S}^{0} Ξ ˉ^{+} Σ^{-} + c.c.$ at $s = 3.51 - 4.95$ GeV

Search for an isoscalar partner of the $Z_{c} (3900)$ in $e^{+} e^{-} \to π^{+} π^{-} η J / ψ$

Measurement of Born cross sections for $e^{+} e^{-} \to p p ˉ$ at $s = 3.510 - 4.946$ GeV

Observation of $ψ (3770) \to p p ˉ$ and Measurement of Electromagnetic Form Factors of Proton at $s = 3.510 - 4.946$ GeV

Measurements of branching fractions of $Λ_{c}^{+} \to Σ^{0} K_{S}^{0} π^{+}$ and $Λ_{c}^{+} \to Σ^{0} K_{S}^{0} K^{+}$

Improved measurements of the coherence factors and strong-phase differences in $D \to K^{-} π^{+} π^{+} π^{-}$ and $D \to K^{-} π^{+} π^{0}$ with quantum-correlated $D D ˉ$ decays

Observation of a New Excited $Σ$ State in $ψ (3686) \to p ˉ K^{+} Σ^{0} + c . c .$

First observation of the $η_{c} \to Ξ^{0} Ξ ˉ^{0}$ decay

Study of $Λ ˉ$ - $p$ Annihilation into Light Mesons

Observation of $Λ ˉ p \to K^{+} π^{+} π^{-} π^{0}$ and $Λ ˉ p \to K^{+} π^{+} π^{-} 2 π^{0}$

Search for $ψ_{0} (4360) \to η ψ (2 S)$ through the process $e^{+} e^{-} \to η η ψ (2 S)$

First evidence for $D_{s}^{+} \to f_{1} (1420) e^{+} ν_{e}$ and search for $D_{s}^{+} \to f_{1} (1285) e^{+} ν_{e}$

Search for the reaction channel $e^{+} e^{-} \to η η J / ψ$ and the isospin partner of the $Z_{c} (3900)$ at center-of-mass energies $s = 4.226 - 4.950$ GeV

First Measurement of the Absolute Branching Fraction of $η_{c} \to γ γ$

Measurements of the absolute branching fractions of the $Λ_{c}^{+}$ hadronic decays

Precise measurements of $D^{0} \to K^{-} ℓ^{+} ν_{ℓ}$ and $D^{+} \to K ˉ^{0} ℓ^{+} ν_{ℓ}$ decays

First Experimental Constraint on the Scalar Current in the $D^{0 (+)} \to K ˉ ℓ^{+} ν_{ℓ}$ Transition

Search for sub-GeV dark particles in $η \to π^{0} + invisible$ decay

Helicity amplitude and branching fraction measurement of $χ_{c J} \to Λ Λ ˉ$

Study of $ϕ \to K K ˉ$ and $K_{S}^{0} - K_{L}^{0}$ Asymmetry in the Amplitude Analysis of $D_{s}^{+} \to K_{S}^{0} K_{L}^{0} π^{+}$ Decays