H. Zhang

activity

20202025

C P

symmetry in the entangled

Ξ^{0} - Ξ ˉ^{0}

Pairs

45 citations · 241 across the 33 of their papers we have counts for

collaborators

30 papers

hep-ex2025

Search for sub-GeV invisible particles in inclusive decays of $J / ψ$ to $ϕ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +696

A search for an invisible particle, $X$ , with a mass between 0 and 0.96 $GeV / c^{2}$ , is performed in the process $J / ψ \to ϕ + X$ using $(8774.0\pm39.4)\times…

hep-ex2025

First observation of $Λ_{c} (2595)^{+} \to Λ_{c}^{+} π^{0} π^{0}$ and $Λ_{c} (2625)^{+} \to Λ_{c}^{+} π^{0} π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +658

By analysing $e^{+} e^{-}$ annihilation data corresponding to an integrated luminosity of 368.48~pb $^{- 1}$ collected at the centre-of-mass energies of $s = 4.918$ and $4.951$ ~GeV…

hep-ex2024

Search for $e^{+} e^{-} \to ϕ χ_{c 0}$ and $ϕ η_{c 2} (1 D)$ at center-of-mass energies from 4.47 to 4.95 GeV

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

Utilizing a data set of $6.7$ fb $^{- 1}$ from electron-positron collisions recorded by the BESIII detector at the BEPCII storage ring, a search is conducted for the processes $e^{+}…

hep-ex2024★ 1 cited

Precision Measurement of the Branching Fraction of $D^{+} \to μ^{+} ν_{μ}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +649

Using $20.3 fb^{- 1}$ of $e^{+} e^{-}$ collision data collected at a center-of-mass energy of $E_{c.m.} = 3.773$ GeV with the BESIII detector operating at the BEPCII collider,…

hep-ex2024

Measurements of the branching fractions of the $P$ -wave charmonium spin-singlet state $h_{c} (^{1} P_{1}) \to h^{+} h^{-} π^{0} / η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +649

Based on $(2712.4 \pm 14.3) \times 1 0^{6}$ $ψ (3686)$ events, we investigate four hadronic decay modes of the $P$ -wave charmonium spin-singlet state $h_{c} (^{1} P_{1}) \to h^{+} h^{-} π^{0} / η$ ($h=…

hep-ex2024★ 1 cited

Observation of the decay $h_{c} \to 3 (π^{+} π^{-}) π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +648

Based on $(2712.4 \pm 14.1) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector, we study the decays $h_{c} \to 3 (π^{+} π^{-}) π^{0}$ , $h_{c} \to 2 (π^{+} π^{-}) ω$ , $h_{c}\to2(π…

hep-ex2024★ 2 cited

Cross section measurement of $e^{+} e^{-} \to η ψ (2 S)$ and search for $e^{+} e^{-} \to η X ~ (3872)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

The energy-dependent cross section for $e^{+} e^{-} \to η ψ (2 S)$ is measured at eighteen center of mass energies from 4.288 GeV to 4.951 GeV using the BESIII detector. Using the same data…

hep-ex2024★ 4 cited

Improved measurements of the Dalitz decays $η / η^{'} \to γ e^{+} e^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +628

Based on a data sample of 10 billion $J / ψ$ events collected with the BESIII detector, improved measurements of the Dalitz decays $η / η^{'} \to γ e^{+} e^{-}$ are performed, where the $…

hep-ex2024★ 1 cited

First observation of the decay $Λ_{c}^{+} \to n K_{S}^{0} π^{+} π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +636

Based on 4.5 fb $^{- 1}$ of $e^{+} e^{-}$ collision data accumulated at center-of-mass energies between $4599.53$ MeV and $4698.82$ MeV with the BESIII detector, the decay $Λ_{c}^{+}\…

hep-ex2023★ 3 cited

Measurements of Born Cross Sections for $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c} (2595)^{-} + c.c.$ and $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c} (2625)^{-} + c.c.$ at $s =$ 4918.0 and 4950.9 MeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +630

Using $e^{+} e^{-}$ collision data collected with the BESIII detector operating at the BEPCII collider, the Born cross sections of $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c} (2595)^{-} + c.c.$ and…

hep-ex2023★ 6 cited

First observation of $Λ_{c}^{+} \to Λ K^{+} π^{0}$ and evidence of $Λ_{c}^{+} \to Λ K^{+} π^{+} π^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +619

We present the first observation of the singly Cabibbo-suppressed decay $Λ_{c}^{+} \to Λ K^{+} π^{0}$ with a significance of $5.7 σ$ and the first evidence of $Λ_c^+ \rightarrow ΛK^+π…

hep-ex2023★ 7 cited

Updated measurements of the M1 transition $ψ (3686) \to γ η_{c} (2 S)$ with $η_{c} (2 S) \to K K ˉ π$

BESIII Collaboration, M. Ablikim, M. N. Achasov +620

Based on a data sample of $(27.08 \pm 0.14) \times 1 0^{8} ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, the M1 transition $ψ (3686) \to γ η_{c} (2 S)$ with…

hep-ex2023★ 5 cited

Measurements of the absolute branching fractions of $Ω^{-}$ decays and test of the $Δ I = 1/2$ rule

BESIII Collaboration, M. Ablikim, M. N. Achasov +610

Based on a data set of $(27.12 \pm 0.10) \times 1 0^{8}$ $ψ (3686)$ events collected at the BESIII experiment, the absolute branching fractions of the three dominant $Ω^{-}$ decays are meas…

hep-ex2023★ 1 cited

Observation of the Singly Cabibbo-Suppressed Decay $Λ_{c}^{+} \to Σ^{-} K^{+} π^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +616

The singly Cabibbo-suppressed decay $Λ_{c}^{+} \to Σ^{-} K^{+} π^{+}$ is observed for the first time with a statistical significance of $6.4 σ$ by using 4.5 fb $^{- 1}$ of $e^{+} e^{-}$ colli…

hep-ex2023★ 17 cited

First Measurement of the Decay Asymmetry in the pure W-boson-exchange Decay $Λ_{c}^{+} \to Ξ^{0} K^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +628

Based on $4.4 fb^{- 1}$ of $e^{+} e^{-}$ annihilation data collected at the center-of-mass energies between $4.60$ and $4.70 GeV$ with the BESIII detector at the BEPCII…

hep-ex2023★ 43 cited

Measurement of the Energy-Dependent Electromagnetic Form Factors of a Charmed Baryon

BESIII Collaboration, M. Ablikim, M. N. Achasov +609

We study the process $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-}$ at twelve center-of-mass energies from $4.6119$ to $4.9509 GeV$ using data samples collected by the BESIII detecto…

hep-ex2023★ 15 cited

Determination of the $Σ^{+}$ Timelike Electromagnetic Form Factors

BESIII Collaboration, M. Ablikim, M. N. Achasov +615

Based on data samples collected with the BESIII detector at the BEPCII collider, the process $e^{+} e^{-} \to Σ^{+} Σ ˉ^{-}$ is studied at center-of-mass energies $s$ = 2.39…

hep-ex2023★ 5 cited

Precise measurement of the branching fractions of $J / ψ \to Λ ˉ π^{+} Σ^{-} + c . c .$ and $J / ψ \to Λ ˉ π^{-} Σ^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +610

Based on a data sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, the branching fraction of $J / ψ \to Λ ˉ π^{+} Σ^{-} + c . c .$ is measured to be…

hep-ex2023★ 4 cited

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

BESIII Collaboration, M. Ablikim, M. N. Achasov +608

Quantum-correlated $D D ˉ$ pairs collected by the BESIII experiment at the $ψ (3770)$ resonance, corresponding to an integrated luminosity of 2.93 fb $^{- 1}$ , are used to study th…

hep-ex2023★ 45 cited

Tests of $C P$ symmetry in the entangled $Ξ^{0} - Ξ ˉ^{0}$ Pairs

BESIII Collaboration, M. Ablikim, M. N. Achasov +609

The $J / ψ \to Ξ^{0} Ξ ˉ^{0}$ process and subsequent decays are investigated using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected at the BESIII experiment. The decay parameters of…

hep-ex2023★ 17 cited

Test of $C P$ Symmetry in Hyperon to Neutron Decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +608

The quantum entangled $J / ψ \to Σ^{+} Σ ˉ^{-}$ pairs from $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events taken by the BESIII detector are used to study the non-leptonic two-body weak…

hep-ex2023★ 9 cited

Determination of Spin-parity Quantum Numbers for the Narrow Structure Near the $p Λ ˉ$ Threshold in $e^{+} e^{-} \to p K^{-} Λ ˉ + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +593

A narrow structure in the $p Λ ˉ$ system near the mass threshold, named as $X (2085)$ , is observed in the process $e^{+} e^{-} \to p K^{-} Λ ˉ$ with a statistical significance greater th…

hep-ex2023★ 9 cited

Study of the $f_{0} (980)$ and $f_{0} (500)$ Scalar Mesons through the Decay $D_{s}^{+} \to π^{+} π^{-} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +605

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-ex2023★ 7 cited

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

BESIII Collaboration, M. Ablikim, M. N. Achasov +614

This paper reports the study of $D_{s}^{+} \to τ^{+} ν$ via $τ^{+} \to π^{+} ν ˉ_{τ}$ using a boosted decision tree method, with $7.33$ fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected by the B…

Search for sub-GeV invisible particles in inclusive decays of J/ψ to ϕ

First observation of Λc​(2595)+→Λc+​π0π0 and Λc​(2625)+→Λc+​π0π0

Search for e+e−→ϕχc0​ and ϕηc2​(1D) at center-of-mass energies from 4.47 to 4.95 GeV

Precision Measurement of the Branching Fraction of D+→μ+νμ​

Measurements of the branching fractions of the P-wave charmonium spin-singlet state hc​(1P1​)→h+h−π0/η

Observation of the decay hc​→3(π+π−)π0

Cross section measurement of e+e−→ηψ(2S) and search for e+e−→ηX~(3872)

Improved measurements of the Dalitz decays η/η′→γe+e−

First observation of the decay Λc+​→nKS0​π+π0

Measurements of Born Cross Sections for e+e−→Λc+​Λˉc​(2595)−+c.c. and e+e−→Λc+​Λˉc​(2625)−+c.c. at s​=4918.0 and 4950.9 MeV

First observation of Λc+​→ΛK+π0 and evidence of Λc+​→ΛK+π+π−

Updated measurements of the M1 transition ψ(3686)→γηc​(2S) with ηc​(2S)→KKˉπ

Measurements of the absolute branching fractions of Ω− decays and test of the ΔI=1/2 rule

Observation of the Singly Cabibbo-Suppressed Decay Λc+​→Σ−K+π+

First Measurement of the Decay Asymmetry in the pure W-boson-exchange Decay Λc+​→Ξ0K+

Measurement of the Energy-Dependent Electromagnetic Form Factors of a Charmed Baryon

Determination of the Σ+ Timelike Electromagnetic Form Factors

Precise measurement of the branching fractions of J/ψ→Λˉπ+Σ−+c.c. and J/ψ→Λˉπ−Σ++c.c.

Determination of the CP-even fraction of D0→KS0​π+π−π0

Tests of CP symmetry in the entangled Ξ0−Ξˉ0 Pairs

Test of CP Symmetry in Hyperon to Neutron Decays

Determination of Spin-parity Quantum Numbers for the Narrow Structure Near the pΛˉ Threshold in e+e−→pK−Λˉ+c.c.

Study of the f0​(980) and f0​(500) Scalar Mesons through the Decay Ds+​→π+π−e+νe​

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

Search for sub-GeV invisible particles in inclusive decays of $J / ψ$ to $ϕ$

First observation of $Λ_{c} (2595)^{+} \to Λ_{c}^{+} π^{0} π^{0}$ and $Λ_{c} (2625)^{+} \to Λ_{c}^{+} π^{0} π^{0}$

Search for $e^{+} e^{-} \to ϕ χ_{c 0}$ and $ϕ η_{c 2} (1 D)$ at center-of-mass energies from 4.47 to 4.95 GeV

Precision Measurement of the Branching Fraction of $D^{+} \to μ^{+} ν_{μ}$

Measurements of the branching fractions of the $P$ -wave charmonium spin-singlet state $h_{c} (^{1} P_{1}) \to h^{+} h^{-} π^{0} / η$

Observation of the decay $h_{c} \to 3 (π^{+} π^{-}) π^{0}$

Cross section measurement of $e^{+} e^{-} \to η ψ (2 S)$ and search for $e^{+} e^{-} \to η X ~ (3872)$

Improved measurements of the Dalitz decays $η / η^{'} \to γ e^{+} e^{-}$

First observation of the decay $Λ_{c}^{+} \to n K_{S}^{0} π^{+} π^{0}$

Measurements of Born Cross Sections for $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c} (2595)^{-} + c.c.$ and $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c} (2625)^{-} + c.c.$ at $s =$ 4918.0 and 4950.9 MeV

First observation of $Λ_{c}^{+} \to Λ K^{+} π^{0}$ and evidence of $Λ_{c}^{+} \to Λ K^{+} π^{+} π^{-}$

Updated measurements of the M1 transition $ψ (3686) \to γ η_{c} (2 S)$ with $η_{c} (2 S) \to K K ˉ π$

Measurements of the absolute branching fractions of $Ω^{-}$ decays and test of the $Δ I = 1/2$ rule

Observation of the Singly Cabibbo-Suppressed Decay $Λ_{c}^{+} \to Σ^{-} K^{+} π^{+}$

First Measurement of the Decay Asymmetry in the pure W-boson-exchange Decay $Λ_{c}^{+} \to Ξ^{0} K^{+}$

Determination of the $Σ^{+}$ Timelike Electromagnetic Form Factors

Precise measurement of the branching fractions of $J / ψ \to Λ ˉ π^{+} Σ^{-} + c . c .$ and $J / ψ \to Λ ˉ π^{-} Σ^{+} + c . c .$

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

Tests of $C P$ symmetry in the entangled $Ξ^{0} - Ξ ˉ^{0}$ Pairs

Test of $C P$ Symmetry in Hyperon to Neutron Decays

Determination of Spin-parity Quantum Numbers for the Narrow Structure Near the $p Λ ˉ$ Threshold in $e^{+} e^{-} \to p K^{-} Λ ˉ + c . c .$

Study of the $f_{0} (980)$ and $f_{0} (500)$ Scalar Mesons through the Decay $D_{s}^{+} \to π^{+} π^{-} e^{+} ν_{e}$

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