E. V. D. Smagt

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

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hep-ex2026

Updated measurement of the branching fraction of $D_{s}^{+} \to τ^{+} ν_{τ}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

Using a dataset of 7.33 fb $^{- 1}$ of $e^{+} e^{-}$ annihilation data collected with the BESIII detector at center-of-mass energies from 4.128 to 4.226 GeV, we report an updated measure…

hep-ex2026

First Measurement of the $D_{s}^{+} \to K^{} (892)^{0} μ^{+} ν_{μ}$ Decay, Study of Dynamics and Test of Lepton Universality with $D_{s}^{+} \to K^{} (892)^{0} ℓ^{+} ν_{ℓ}$ Decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +715

We report the first measurement of the semileptonic decay $D_{s}^{+} \to K^{*} (892)^{0} μ^{+} ν_{μ}$ and an improved measurement of the decay $D_{s}^{+} \to K^{*} (892)^{0} e^{+} ν_{e}$ usin…

hep-ex2026

Measurement of the double Dalitz decay $η \to e^{+} e^{-} e^{+} e^{-}$

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

Using a data sample of $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected with the BESIII detector, we study the rare double Dalitz decay of $η \to e^{+} e^{-} e^{+} e^{-}$ …

hep-ex2026

Observation of $D_{s}^{+} \to a_{0} (980)^{+} f_{0} (500)$ in the Amplitude Analysis of $D_{s}^{+} \to π^{+} π^{0} π^{0} η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +716

We report the first observation of the decay $D_{s}^{+} \to π^{+} π^{0} π^{0} η$ in a data set corresponding to an integrated luminosity of 7.33 fb $^{- 1}$ , collected in $e^{+} e^{-}$ collisions by t…

hep-ex2026

Precision Studies and Searches for CP Asymmetries in the Inclusive Decay $Λ_{c}^{+} \to Λ X$

BESIII Collaboration, M. Ablikim, M. N. Achasov +716

Based on $e^{+} e^{-}$ annihilation data collected with the BESIII detector at center-of-mass energies from $4.600$ to $4.699 GeV$ , corresponding to an integrated luminosit…

hep-ex2026

Measurement of Born Cross Sections for $e^{+} e^{-} \to Σ^{-} Σ ˉ^{+}$ at $s = 3.51 - 4.95$ GeV and Observation of $ψ (3770) \to Σ^{-} Σ ˉ^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +704

Using $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of 44 fb $^{- 1}$ collected with the BESIII detector at the BEPCII collider, we report the first measurement o…

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

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

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

Amplitude analysis and branching fraction measurement of $J / ψ \to Λ Σ ˉ^{0} η + c.c$

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

Based on a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, a partial-wave analysis of $J / ψ \to Λ Σ ˉ^{0} η + c.c$ is performed for th…

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

Measurements of the branching fractions of $χ_{c J} \to 2 K^{+} 2 K^{-} ω$ and $ϕ K^{+} K^{-} ω$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +688

Using a data sample of $(2712.4 \pm 14.3) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector operating at the BEPCII collider, we report the first observation of th…

hep-ex2026

Observation of $Ξ (1530)^{0}$ Polarization and Determination of Its Electric and Magnetic Moments in $ψ (3686) \to Ξ (1530)^{0} Ξ ˉ (1530)^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

Using the data sample of $2.7 \times 1 0^{9}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, we present an observation of the $Ξ (1530)^{0}$ polarization in th…

hep-ex2025

Observation and branching fraction measurements of $χ_{c J} \to p p ˉ K_{S}^{0} K_{S}^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

Based on $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected with the BESIII detector, the decays $χ_{c J} \to p p ˉ K_{S}^{0} K_{S}^{0}$ ( $J = 0, 1, 2$ ) are observed for the fir…

hep-ex2025

First measurement of the absolute branching fractions of $Σ^{+}$ nonleptonic decays and test of the $Δ I = 1/2$ rule

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

Based on $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected by the BESIII detector at the center-of-mass energy $s = 3.097$ GeV, the first absolute measurement of the branc…

hep-ex2025

Search for the lepton number violating process $Ξ^{-} \to Σ^{+} e^{-} e^{-} + c . c .$

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

We present a search for the lepton number violating decay $Ξ^{-} \to Σ^{+} e^{-} e^{-} + c . c .$ with $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected by the BESIII detector at the BEPCII…

hep-ex2025

Study of the reactions $n ˉ p \to 2 π^{+} π^{-}$ , $2 π^{+} π^{-} π^{0}$ , and $2 π^{+} π^{-} 2 π^{0}$ using $J / ψ \to p π^{-} n ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +688

We report an experimental investigation of the reactions $n ˉ p \to 2 π^{+} π^{-}$ , $n ˉ p \to 2 π^{+} π^{-} π^{0}$ , and $n ˉ p \to 2 π^{+} π^{-} 2 π^{0}$ using $(10.087 \pm 0.0…

hep-ex2025

First determination of the full spin density matrix in $ψ (3686) \to Λ Λ ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +688

Using $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector, we present the first complete determination of the spin density matrix in $ψ (3686) \to Λ Λ ˉ$ .…

hep-ex2025

Search for CP violation in $e^{+} e^{-} \to ψ (3770) \to D^{0} D ˉ^{0}$ via $D - > K_{S}^{0} π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +701

Utilizing data sample of electron-positron collisions recorded with the BESIII detector at the center of mass energy of 3.773 GeV, corresponding to an integrated luminosity of 20.2…

hep-ex2025

Production and Decay Dynamics of the Charmed Baryon $Λ_{c}^{+}$ in $e^{+} e^{-}$ Annihilations near Threshold

BESIII Collaboration, M. Ablikim, M. N. Achasov +700

The study of the charmed baryons is crucial for investigating the strong and weak interactions in the standard model and for gaining insights into the internal structure of baryons…

Updated measurement of the branching fraction of Ds+​→τ+ντ​

First Measurement of the Ds+​→K∗(892)0μ+νμ​ Decay, Study of Dynamics and Test of Lepton Universality with Ds+​→K∗(892)0ℓ+νℓ​ Decays

Measurement of the double Dalitz decay η→e+e−e+e−

Observation of Ds+​→a0​(980)+f0​(500) in the Amplitude Analysis of Ds+​→π+π0π0η

Precision Studies and Searches for CP Asymmetries in the Inclusive Decay Λc+​→ΛX

Measurement of Born Cross Sections for e+e−→Σ−Σˉ+ at s​=3.51−4.95 GeV and Observation of ψ(3770)→Σ−Σˉ+

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

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

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

Amplitude analysis and branching fraction measurement of J/ψ→ΛΣˉ0η+c.c

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

Measurements of the branching fractions of χcJ​→2K+2K−ω and ϕK+K−ω decays

Observation of Ξ(1530)0 Polarization and Determination of Its Electric and Magnetic Moments in ψ(3686)→Ξ(1530)0Ξˉ(1530)0

Observation and branching fraction measurements of χcJ​→ppˉ​KS0​KS0​

First measurement of the absolute branching fractions of Σ+ nonleptonic decays and test of the ΔI=1/2 rule

Search for the lepton number violating process Ξ−→Σ+e−e−+c.c.

Study of the reactions nˉp→2π+π−, 2π+π−π0, and 2π+π−2π0 using J/ψ→pπ−nˉ

First determination of the full spin density matrix in ψ(3686)→ΛΛˉ

Search for CP violation in e+e−→ψ(3770)→D0Dˉ0 via D−>KS0​π0

Production and Decay Dynamics of the Charmed Baryon Λc+​ in e+e− Annihilations near Threshold

Updated measurement of the branching fraction of $D_{s}^{+} \to τ^{+} ν_{τ}$

First Measurement of the $D_{s}^{+} \to K^{} (892)^{0} μ^{+} ν_{μ}$ Decay, Study of Dynamics and Test of Lepton Universality with $D_{s}^{+} \to K^{} (892)^{0} ℓ^{+} ν_{ℓ}$ Decays

Measurement of the double Dalitz decay $η \to e^{+} e^{-} e^{+} e^{-}$

Observation of $D_{s}^{+} \to a_{0} (980)^{+} f_{0} (500)$ in the Amplitude Analysis of $D_{s}^{+} \to π^{+} π^{0} π^{0} η$

Precision Studies and Searches for CP Asymmetries in the Inclusive Decay $Λ_{c}^{+} \to Λ X$

Measurement of Born Cross Sections for $e^{+} e^{-} \to Σ^{-} Σ ˉ^{+}$ at $s = 3.51 - 4.95$ GeV and Observation of $ψ (3770) \to Σ^{-} Σ ˉ^{+}$

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

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

Amplitude analysis and branching fraction measurement of $J / ψ \to Λ Σ ˉ^{0} η + c.c$

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

Measurements of the branching fractions of $χ_{c J} \to 2 K^{+} 2 K^{-} ω$ and $ϕ K^{+} K^{-} ω$ decays

Observation of $Ξ (1530)^{0}$ Polarization and Determination of Its Electric and Magnetic Moments in $ψ (3686) \to Ξ (1530)^{0} Ξ ˉ (1530)^{0}$

Observation and branching fraction measurements of $χ_{c J} \to p p ˉ K_{S}^{0} K_{S}^{0}$

First measurement of the absolute branching fractions of $Σ^{+}$ nonleptonic decays and test of the $Δ I = 1/2$ rule

Search for the lepton number violating process $Ξ^{-} \to Σ^{+} e^{-} e^{-} + c . c .$

Study of the reactions $n ˉ p \to 2 π^{+} π^{-}$ , $2 π^{+} π^{-} π^{0}$ , and $2 π^{+} π^{-} 2 π^{0}$ using $J / ψ \to p π^{-} n ˉ$

First determination of the full spin density matrix in $ψ (3686) \to Λ Λ ˉ$

Search for CP violation in $e^{+} e^{-} \to ψ (3770) \to D^{0} D ˉ^{0}$ via $D - > K_{S}^{0} π^{0}$

Production and Decay Dynamics of the Charmed Baryon $Λ_{c}^{+}$ in $e^{+} e^{-}$ Annihilations near Threshold