X. Q. Hao

activity

20102025

χ_{c J}

radiative decays into a vector meson

154 citations · 1.5k across the 41 of their papers we have counts for

collaborators

41 papers

hep-ex2025

Measurements of the Absolute Branching Fraction of the Semileptonic Decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ and the Axial Charge of the $Ξ^{-}$

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

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, we study the semileptonic decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ for the first time at an electron-…

hep-ex2025

Observation of the decay $ψ (3686) \to Σ^{0} Σ ˉ^{0} ω$

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

Using a dataset of $(27.12 \pm 0.14) \times 1 0^{8}$ $ψ (3686)$ events collected by the BESIII detector operating at the BEPCII collider, we report the first observation of the decay $…

hep-ex2023★ 12 cited

Measurement of $e^{+} e^{-} \to η J / ψ$ Cross Section from $s =$ 3.808 GeV to 4.951 GeV

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

Using data samples with an integrated luminosity of 22.42 fb $^{- 1}$ collected by the BESIII detector operating at the BEPCII storage ring, we measure the cross sections of the $e^{…

nucl-ex2023★ 9 cited

First measurement of $Λ N$ inelastic scattering with $Λ$ from $e^{+} e^{-} \to J / ψ \to Λ Λ ˉ$

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

Using an $e^{+} e^{-}$ collision data sample of $(10087 \pm 44) \times 1 0^{6} J / ψ$ events taken at the center-of-mass energy of $3.097 GeV$ by the BESIII detector at the BEPCII colli…

hep-ex2023

Measurement of the Branching Fraction for the Decay $ψ (3686) \to ϕ K_{S}^{0} K_{S}^{0}$

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

Based on $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector operating at the BEPCII collider, the decay $ψ (3686) \to ϕ K_{S}^{0} K_{S}^{0}$ is…

hep-ex2022★ 1 cited

Search for the weak decay $ψ (3686) \to Λ_{c}^{+} Σ ˉ^{-} + c . c$

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

Using $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector, we perform the first search for the weak baryonic decay $ψ(3686) \to Λ_c^{+} \barΣ^- +c.c…

hep-ex2021★ 92 cited

New Features in the Electromagnetic Structure of the Neutron

M. Ablikim, M. N. Achasov, P. Adlarson +504

Here we present new results for the Born cross section and the effective form factor of the neutron at the center-of-mass energies $s$ between 2.0 and 3.08 GeV, using…

hep-ex2021★ 3 cited

Study of $e^{+} e^{-} \to π^{0} X (3872) γ$ and search for $Z_{c} (4020)^{0} \to X (3872) γ$

M. Ablikim, M. N. Achasov, P. Adlarson +505

Using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies from 4.178 to 4.600 GeV, we study the process $e^+e^-\rightarr…

hep-ex2020★ 4 cited

Search for New Hadronic Decays of $h_{c}$ and Observation of $h_{c} \to K^{+} K^{-} π^{+} π^{-} π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +493

Ten hadronic final states of the $h_{c}$ decays are investigated via the process $ψ (3686) \to π^{0} h_{c}$ , using a data sample of $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events c…

hep-ex2020★ 60 cited

Measurements of Sigma+ and Sigma- Time-like Electromagnetic Form Factors for center-of-mass energies from 2.3864 to 3.0200 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +494

The Born cross sections of the $e^{+} e^{-} \to Σ^{+} Σ ˉ^{-}$ and $e^{+} e^{-} \to Σ^{-} Σ ˉ^{+}$ processes are determined with high precision for center-of-mass energy from 2.3864 to…

hep-ex2020★ 13 cited

Measurement of cross sections for $e^{+} e^{-} \to μ^{+} μ^{-}$ at center-of-mass energies from 3.80 to 4.60 GeV

BESIII Collaboration

The observed cross sections for $e^{+} e^{-} \to μ^{+} μ^{-}$ at energies from 3.8 to 4.6 GeV are measured using data samples taken with the BESIII detector operated at the BEPCII col…

hep-ex2020★ 22 cited

First Observation of $D^{+} \to η μ^{+} ν_{μ}$ and Measurement of its Decay Dynamics

BESIII Collaboration

By analyzing a data sample corresponding to an integrated luminosity of $2.93 fb^{- 1}$ collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, we measu…

hep-ex2020★ 1 cited

Search for intermediate resonances and dark gauge bosons in $J / ψ \to γ π^{0} η^{'}$

BESIII Collaboration

We report on an analysis of the decay $J / ψ \to γ π^{0} η^{'}$ using a sample of $(1310.6 \pm 7.0) \times 1 0^{6} J / ψ$ events collected with the BESIII detector. We search for…

hep-ex2019★ 96 cited

Measurement of proton electromagnetic form factors in $e^{+} e^{-} \to p p ˉ$ in the energy region 2.00-3.08 GeV

M. Ablikim, M. N. Achasov, P. Adlarson +473

The process of $e^{+} e^{-} \to p p ˉ$ is studied at 22 center-of-mass energy points ( $s$ ) from 2.00 to 3.08 GeV, exploiting 688.5~pb $^{- 1}$ of data collected with the…

hep-ex2019★ 15 cited

Precision measurement of the branching fractions of $η^{'}$ decays

M. Ablikim, M. N. Achasov, S. Ahmed +460

Based on a sample of $(1310.6 \pm 7.0) \times 1 0^{6} J / ψ$ events collected with the BESIII detector, we present measurements of $J / ψ$ and $η^{'}$ absolute branching fractions usin…

hep-ex2018★ 47 cited

Study of the $D^{0} \to K^{-} μ^{+} ν_{μ}$ dynamics and test of lepton flavor universality with $D^{0} \to K^{-} ℓ^{+} ν_{ℓ}$ decays

M. Ablikim, M. N. Achasov, S. Ahmed +456

Using $e^{+} e^{-}$ annihilation data of $2.93 fb^{- 1}$ collected at center-of-mass energy $s = 3.773$ GeV with the BESIII detector, we measure the absolute branching frac…

hep-ex2018★ 37 cited

Observation of $D^{+} \to f_{0} (500) e^{+} ν_{e}$ and Improved Measurements of $D \to ρ e^{+} ν_{e}$

M. Ablikim, M. N. Achasov, S. Ahmed +458

Using a data sample corresponding to an integrated luminosity of 2.93~fb $^{- 1}$ recorded by the BESIII detector at a center-of-mass energy of $3.773$ GeV, we present an analysis of…

hep-ex2018★ 89 cited

Evidence of a resonant structure in the $e^{+} e^{-} \to π^{+} D^{0} D^{*-}$ cross section between 4.05 and 4.60 GeV

M. Ablikim, M. N. Achasov, S. Ahmed +435

The cross section of the process $e^{+} e^{-} \to π^{+} D^{0} D^{*-}$ for center-of-mass energies from 4.05 to 4.60~GeV is measured precisely using data samples collected with the BESIII detec…

hep-ex2018★ 12 cited

Measurement of the phase between strong and electromagnetic amplitudes of $J / ψ$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +442

Using 16 energy points of $e^{+} e^{-}$ annihilation data collected in the vicinity of the $J / ψ$ resonance with the BESIII detector and with a total integrated luminosity of around…

hep-ex2018★ 37 cited

Observation of $a_{0}^{0} (980)$ - $f_{0} (980)$ Mixing

M. Ablikim, M. N. Achasov, S. Ahmed +436

We report the first observation of $a_{0}^{0} (980)$ - $f_{0} (980)$ mixing in the decays of $J / ψ \to ϕ f_{0} (980) \to ϕ a_{0}^{0} (980) \to ϕ η π^{0}$ and $χ_{c1}\to a^{0}_{0}(980)π^{0}\to f_{0}…

hep-ex2017★ 31 cited

Measurement of the absolute branching fraction of $D_{s 0}^{*\pm} (2317) \to π^{0} D_{s}^{\pm}$

M. Ablikim, M. N. Achasov, S. Ahmed +427

The process $e^{+} e^{-} \to D_{s}^{*+} D_{s 0}^{*-} (2317) + c . c .$ is observed for the first time with the data sample of 567~pb $^{- 1}$ collected with the BESIII detector operating at the…

hep-ex2017★ 5 cited

Improved measurements of $χ_{c J} \to Σ^{+} Σ ˉ^{-}$ and $Σ^{0} Σ ˉ^{0}$ decays

BESIII Collaboration

Using 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, we present measurements of branching fractions for the d…

hep-ex2017★ 60 cited

Study of $J / ψ$ and $ψ (3686)$ decay to $Λ Λ ˉ$ and $Σ^{0} Σ ˉ^{0}$ final states

BESIII Collaboration, M. Ablikim, M. N. Achasov +426

Using $1310.6 \times 1 0^{6}$ $J / ψ$ and $447.9 \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII $e^{+} e^{-}$ collider, the branching fractions and the angula…

hep-ex2017★ 16 cited

Observation of $ψ (3686) \to e^{+} e^{-} χ_{c J}$ and $χ_{c J} \to e^{+} e^{-} J / ψ$

M. Ablikim, M. N. Achasov, X. C. Ai +420

Using $4.479 \times 1 0^{8}$ $ψ (3686)$ events collected with the BESIII detector, we search for the decays $ψ (3686) \to e^{+} e^{-} χ_{c 0, 1, 2}$ and $χ_{c0,1,2} \rightarrow e^{…

Measurements of the Absolute Branching Fraction of the Semileptonic Decay Ξ−→Λe−νˉe​ and the Axial Charge of the Ξ−

Observation of the decay ψ(3686)→Σ0Σˉ0ω

Measurement of e+e−→ηJ/ψ Cross Section from s​= 3.808 GeV to 4.951 GeV

First measurement of ΛN inelastic scattering with Λ from e+e−→J/ψ→ΛΛˉ

Measurement of the Branching Fraction for the Decay ψ(3686)→ϕKS0​KS0​

Search for the weak decay ψ(3686)→Λc+​Σˉ−+c.c

New Features in the Electromagnetic Structure of the Neutron

Study of e+e−→π0X(3872)γ and search for Zc​(4020)0→X(3872)γ

Search for New Hadronic Decays of hc​ and Observation of hc​→K+K−π+π−π0

Measurements of Sigma+ and Sigma- Time-like Electromagnetic Form Factors for center-of-mass energies from 2.3864 to 3.0200 GeV

Measurement of cross sections for e+e−→μ+μ− at center-of-mass energies from 3.80 to 4.60 GeV

First Observation of D+→ημ+νμ​ and Measurement of its Decay Dynamics

Search for intermediate resonances and dark gauge bosons in J/ψ→γπ0η′

Measurement of proton electromagnetic form factors in e+e−→ppˉ​ in the energy region 2.00-3.08 GeV

Precision measurement of the branching fractions of η′ decays

Study of the D0→K−μ+νμ​ dynamics and test of lepton flavor universality with D0→K−ℓ+νℓ​ decays

Observation of D+→f0​(500)e+νe​ and Improved Measurements of D→ρe+νe​

Evidence of a resonant structure in the e+e−→π+D0D∗− cross section between 4.05 and 4.60 GeV

Measurement of the phase between strong and electromagnetic amplitudes of J/ψ decays

Observation of a00​(980)-f0​(980) Mixing

Measurement of the absolute branching fraction of Ds0∗±​(2317)→π0Ds±​

Improved measurements of χcJ​→Σ+Σˉ− and Σ0Σˉ0 decays

Study of J/ψ and ψ(3686) decay to ΛΛˉ and Σ0Σˉ0 final states

Observation of ψ(3686)→e+e−χcJ​ and χcJ​→e+e−J/ψ

Measurements of the Absolute Branching Fraction of the Semileptonic Decay $Ξ^{-} \to Λ e^{-} ν ˉ_{e}$ and the Axial Charge of the $Ξ^{-}$

Observation of the decay $ψ (3686) \to Σ^{0} Σ ˉ^{0} ω$

Measurement of $e^{+} e^{-} \to η J / ψ$ Cross Section from $s =$ 3.808 GeV to 4.951 GeV

First measurement of $Λ N$ inelastic scattering with $Λ$ from $e^{+} e^{-} \to J / ψ \to Λ Λ ˉ$

Measurement of the Branching Fraction for the Decay $ψ (3686) \to ϕ K_{S}^{0} K_{S}^{0}$

Search for the weak decay $ψ (3686) \to Λ_{c}^{+} Σ ˉ^{-} + c . c$

Study of $e^{+} e^{-} \to π^{0} X (3872) γ$ and search for $Z_{c} (4020)^{0} \to X (3872) γ$

Search for New Hadronic Decays of $h_{c}$ and Observation of $h_{c} \to K^{+} K^{-} π^{+} π^{-} π^{0}$

Measurement of cross sections for $e^{+} e^{-} \to μ^{+} μ^{-}$ at center-of-mass energies from 3.80 to 4.60 GeV

First Observation of $D^{+} \to η μ^{+} ν_{μ}$ and Measurement of its Decay Dynamics

Search for intermediate resonances and dark gauge bosons in $J / ψ \to γ π^{0} η^{'}$

Measurement of proton electromagnetic form factors in $e^{+} e^{-} \to p p ˉ$ in the energy region 2.00-3.08 GeV

Precision measurement of the branching fractions of $η^{'}$ decays

Study of the $D^{0} \to K^{-} μ^{+} ν_{μ}$ dynamics and test of lepton flavor universality with $D^{0} \to K^{-} ℓ^{+} ν_{ℓ}$ decays

Observation of $D^{+} \to f_{0} (500) e^{+} ν_{e}$ and Improved Measurements of $D \to ρ e^{+} ν_{e}$

Evidence of a resonant structure in the $e^{+} e^{-} \to π^{+} D^{0} D^{*-}$ cross section between 4.05 and 4.60 GeV

Measurement of the phase between strong and electromagnetic amplitudes of $J / ψ$ decays

Observation of $a_{0}^{0} (980)$ - $f_{0} (980)$ Mixing

Measurement of the absolute branching fraction of $D_{s 0}^{*\pm} (2317) \to π^{0} D_{s}^{\pm}$

Improved measurements of $χ_{c J} \to Σ^{+} Σ ˉ^{-}$ and $Σ^{0} Σ ˉ^{0}$ decays

Study of $J / ψ$ and $ψ (3686)$ decay to $Λ Λ ˉ$ and $Σ^{0} Σ ˉ^{0}$ final states

Observation of $ψ (3686) \to e^{+} e^{-} χ_{c J}$ and $χ_{c J} \to e^{+} e^{-} J / ψ$