Y. Pan

activity

20212025

most citedPrecise Measurements of Decay Parameters and

C P

Asymmetry with Entangled

Λ - Λ ˉ

Pairs

83 citations · 484 across the 71 of their papers we have counts for

collaborators

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37 papers · 1 filter

hep-ex2022

Search for the weak radiative decay $Λ_{c}^{+} \to Σ^{+} γ$ at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +567

The Cabibbo-allowed weak radiative decay $Λ_{c}^{+} \to Σ^{+} γ$ has been searched for in a sample of $Λ_{c}^{+} Λ ˉ_{c}^{-}$ pairs produced in $e^{+} e^{-}$ annihilations, corresponding to an i…

hep-ex2022

First Direct Measurement of the Absolute Branching Fraction of $Σ^{+} \to Λ e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +591

The first direct measurement of the absolute branching fraction of $Σ^{+} \to Λ e^{+} ν_{e}$ is reported based on an $e^{+} e^{-}$ annihilation sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ eve…

hep-ex2022

Measurements of the electric and magnetic form factors of the neutron for time-like momentum transfer

BESIII Collaboration, M. Ablikim, M. N. Achasov +589

We present the first measurements of the electric and magnetic form factors of the neutron in the time-like (positive $q^{2}$ ) region as function of four-momentum transfer. We explor…

hep-ex2022★ 6 cited

Improved measurement of the absolute branching fraction of inclusive semileptonic $Λ_{c}^{+}$ decay

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

Using $4.5 fb^{- 1}$ of $e^{+} e^{-}$ annihilation data samples collected at center-of-mass energies ranging from 4.600 to 4.698 GeV with the BESIII detector at the BEPCII colli…

hep-ex2022★ 12 cited

Measurements of Differential Cross Sections of Inclusive $π^{0}$ and $K_{S}^{0}$ Production in $e^{+} e^{-}$ Annihilation at Energies from 2.2324 to 3.6710 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +572

Based on electron positron collision data collected with the BESIII detector operating at the BEPCII storage rings, the differential cross sections of inclusive $π^{0}$ and $K_{S}^{0}$ p…

hep-ex2022★ 30 cited

Observation of the $Y (4230)$ and evidence for a new vector charmonium-like state $Y (4710)$ in $e^{+} e^{-} \to K_{S}^{0} K_{S}^{0} J / ψ$

M. Ablikim, M. N. Achasov, P. Adlarson +563

Cross sections for the process $e^{+} e^{-} \to K_{S}^{0} K_{S}^{0} J / ψ$ at center-of-mass energies from $4.128$ to $4.950$ GeV are measured using data samples with a total integra…

hep-ex2022★ 7 cited

Observation of the $J / ψ$ and $ψ (3686)$ decays into $η Σ^{+} Σ ˉ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +572

The decays $J / ψ \to η Σ^{+} Σ ˉ^{-}$ and $ψ (3686) \to η Σ^{+} Σ ˉ^{-}$ are observed for the first time, using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ and $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ(…

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★ 16 cited

Observations of the Cabibbo-Suppressed decays $Λ_{c}^{+} \to n π^{+} π^{0}$ , $n π^{+} π^{-} π^{+}$ and the Cabibbo-Favored decay $Λ_{c}^{+} \to n K^{-} π^{+} π^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +567

Using electron-positron annihilation data samples corresponding to an integrated luminosity of 4.5 $fb^{- 1}$ , collected by the BESIII detector in the energy region between $…

hep-ex2022★ 13 cited

Improved measurement of the strong-phase difference $δ_{D}^{K π}$ in quantum-correlated $D D ˉ$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +568

The decay $D \to K^{-} π^{+}$ is studied in a sample of quantum-correlated $D D ˉ$ pairs, based on a data set corresponding to an integrated luminosity of 2.93\,fb $^{- 1}$ collected at…

hep-ex2022★ 2 cited

Observation of the decay $ψ (3686) \to Σ^{-} Σ ˉ^{+}$ and measurement of its angular distribution

BESIII Collaboration, M. Ablikim, M. N. Achasov +567

Using $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, the decay $ψ (3686) \to Σ^{-} Σ ˉ^{+}$ is observed for the first time with a…

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★ 8 cited

Study of $η (1405) / η (1475)$ in $J / ψ \to γ K_{S}^{0} K_{S}^{0} π^{0}$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +567

Using a sample of $(10.09 \pm 0.04) \times 1 0^{9}$ $J / ψ$ decays collected with the BESIII detector, partial wave analyses of the decay $J / ψ \to γ K_{S}^{0} K_{S}^{0} π^{0}$ are performed w…

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★ 5 cited

Search for baryon and lepton number violation decay $D^{\pm} \to n (n ˉ) e^{\pm}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +568

Using a data set of electron-positron collisions corresponding to an integrated luminosity of $2.93 f b^{- 1}$ taken with the BESIII detector at a center-of-mass energy of 3.77…

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★ 6 cited

Observation of the hindered electromagnetic Dalitz decay $ψ (3686) \to e^{+} e^{-} η_{c}$

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

Using a data sample of $(448.1 \pm 2.9) \times 1 0^{6} ψ (3686)$ decays collected at an $e^{+} e^{-}$ center-of-mass energy of $3.686 GeV$ by the BESIII detector at BEPCII, we report a…

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

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★ 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★ 3 cited

Search for the semileptonic decay $D_{s}^{+} \to π^{0} e^{+} ν_{e}$

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

We present the first search for the semileptonic decay $D_{s}^{+} \to π^{0} e^{+} ν_{e}$ using a data sample of electron-positron collisions recorded with the BESIII detector at center-of-mass…

hep-ex2022★ 2 cited

Absolute Measurements of Branching Fractions of Cabibbo-Suppressed Hadronic $D^{0 (+)}$ Decays Involving Multiple Pions

BESIII Collaboration, M. Ablikim, M. N. Achasov +561

By analyzing $e^{+} e^{-}$ annihilation data with an integrated luminosity of $2.93 f b^{- 1}$ collected at the center-of-mass energy $s =$ 3.773 GeV with the BESIII detector, we…

Search for the weak radiative decay Λc+​→Σ+γ at BESIII

First Direct Measurement of the Absolute Branching Fraction of Σ+→Λe+νe​

Measurements of the electric and magnetic form factors of the neutron for time-like momentum transfer

Improved measurement of the absolute branching fraction of inclusive semileptonic Λc+​ decay

Measurements of Differential Cross Sections of Inclusive π0 and KS0​ Production in e+e− Annihilation at Energies from 2.2324 to 3.6710 GeV

Observation of the Y(4230) and evidence for a new vector charmonium-like state Y(4710) in e+e−→KS0​KS0​J/ψ

Observation of the J/ψ and ψ(3686) decays into ηΣ+Σˉ−

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

Observations of the Cabibbo-Suppressed decays Λc+​→nπ+π0, nπ+π−π+ and the Cabibbo-Favored decay Λc+​→nK−π+π+

Improved measurement of the strong-phase difference δDKπ​ in quantum-correlated DDˉ decays

Observation of the decay ψ(3686)→Σ−Σˉ+ and measurement of its angular distribution

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

Study of η(1405)/η(1475) in J/ψ→γKS0​KS0​π0 decay

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

Search for baryon and lepton number violation decay D±→n(nˉ)e±

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

Observation of the hindered electromagnetic Dalitz decay ψ(3686)→e+e−ηc​

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 ψ(3686)→ΛΛˉω

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

Evidence for the Cusp Effect in η′ Decays into ηπ0π0

Search for the semileptonic decay Ds+​→π0e+νe​

Absolute Measurements of Branching Fractions of Cabibbo-Suppressed Hadronic D0(+) Decays Involving Multiple Pions

Search for the weak radiative decay $Λ_{c}^{+} \to Σ^{+} γ$ at BESIII

First Direct Measurement of the Absolute Branching Fraction of $Σ^{+} \to Λ e^{+} ν_{e}$

Improved measurement of the absolute branching fraction of inclusive semileptonic $Λ_{c}^{+}$ decay

Measurements of Differential Cross Sections of Inclusive $π^{0}$ and $K_{S}^{0}$ Production in $e^{+} e^{-}$ Annihilation at Energies from 2.2324 to 3.6710 GeV

Observation of the $Y (4230)$ and evidence for a new vector charmonium-like state $Y (4710)$ in $e^{+} e^{-} \to K_{S}^{0} K_{S}^{0} J / ψ$

Observation of the $J / ψ$ and $ψ (3686)$ decays into $η Σ^{+} Σ ˉ^{-}$

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

Observations of the Cabibbo-Suppressed decays $Λ_{c}^{+} \to n π^{+} π^{0}$ , $n π^{+} π^{-} π^{+}$ and the Cabibbo-Favored decay $Λ_{c}^{+} \to n K^{-} π^{+} π^{+}$

Improved measurement of the strong-phase difference $δ_{D}^{K π}$ in quantum-correlated $D D ˉ$ decays

Observation of the decay $ψ (3686) \to Σ^{-} Σ ˉ^{+}$ and measurement of its angular distribution

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

Study of $η (1405) / η (1475)$ in $J / ψ \to γ K_{S}^{0} K_{S}^{0} π^{0}$ decay

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

Search for baryon and lepton number violation decay $D^{\pm} \to n (n ˉ) e^{\pm}$

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

Observation of the hindered electromagnetic Dalitz decay $ψ (3686) \to e^{+} e^{-} η_{c}$

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 $ψ (3686) \to Λ Λ ˉ ω$

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 $η π^{0} π^{0}$

Search for the semileptonic decay $D_{s}^{+} \to π^{0} e^{+} ν_{e}$

Absolute Measurements of Branching Fractions of Cabibbo-Suppressed Hadronic $D^{0 (+)}$ Decays Involving Multiple Pions