J. W. Zhang

most citedSearch for a hypothetical gauge boson and dark photons in charmonium transitions

2 citations · 3 across the 8 of their papers we have counts for

collaborators

8 papers

hep-ex2025★ 1 cited

Evidence of transverse polarization of $Ξ^{0}$ hyperon in $ψ (3686) \to Ξ^{0} Ξ ˉ^{0}$

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

Using $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, we report an evidence of $Ξ^{0}$ transverse polarization with a sign…

hep-ex2025★ 2 cited

Search for a hypothetical gauge boson and dark photons in charmonium transitions

BESIII Collaboration, M. Ablikim, M. N. Achasov +678

We report a direct search for a new gauge boson, $X$ , with a mass of $17 MeV / c^{2}$ , which could explain the anomalous excess of $e^{+} e^{-}$ pairs observed in the $^{8} Be$ n…

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

Measurement of the space-like $π^{0}$ transition form factor

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

Based on $2.93 fb^{- 1}$ of $e^{+} e^{-}$ collision data taken with the BESIII detector at a center-of-mass energy of $3.773 GeV$ , the two-photon fusion process $e^+e^-\t…

hep-ex2025

Search for $η_{c} (2 S) \to p p ˉ K^{+} K^{-}$ and measurement of $χ_{c J} \to p p ˉ K^{+} K^{-}$ in $ψ (3686)$ radiative decays

M. Ablikim, M. N. Achasov, P. Adlarson +647

A search for $η_{c} (2 S) \to p p ˉ K^{+} K^{-}$ , together with measurement of branching fractions of $χ_{c J (J = 0, 1, 2)} \to p p ˉ K^{+} K^{-}$ in the $ψ (3686) \to γ η_{c} (2 S)$ and the $ψ(3686) \to…

hep-ex2024

Observation of $χ_{c 0} \to Σ^{+} Σ ˉ^{-} η$ and evidence for $χ_{c 1, 2} \to Σ^{+} Σ ˉ^{-} η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +640

Using $(27.12 \pm 0.14) \times 1 0^{8}$ $ψ (3686)$ events collected with the BESIII detector, the decay $χ_{c 0} \to Σ^{+} Σ ˉ^{-} η$ is observed for the first time with a statistical sign…

hep-ex2024

Measurement of the $e^{+} e^{-} \to K^{+} K^{-} ψ (2 S)$ Cross Section at Center-of-Mass Energies from 4.699 to 4.951 GeV and Search for $Z_{cs}^{\pm}$ in the $Z_{cs}^{\pm} \to K^{\pm} ψ (2 S)$ Decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +651

We perform the first investigation of the process $e^{+} e^{-} \to K^{+} K^{-} ψ (2 S)$ and report its Born cross sections over a range of center-of-mass energies from 4.699 to 4.951~GeV. Th…

hep-ex2024

Search for $e^{+} e^{-} \to η^{'} ψ (2 S)$ at center-of-mass energies from 4.66 to 4.95 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +643

Using data samples with an integrated luminosity of $4.67 fb^{- 1}$ collected by the BESIII detector operating at the BEPCII collider, we search for the process $e^+e^- \ri…

Evidence of transverse polarization of Ξ0 hyperon in ψ(3686)→Ξ0Ξˉ0

Search for a hypothetical gauge boson and dark photons in charmonium transitions

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

Measurement of the space-like π0 transition form factor

Search for ηc​(2S)→ppˉ​K+K− and measurement of χcJ​→ppˉ​K+K− in ψ(3686) radiative decays

Observation of χc0​→Σ+Σˉ−η and evidence for χc1,2​→Σ+Σˉ−η

Measurement of the e+e−→K+K−ψ(2S) Cross Section at Center-of-Mass Energies from 4.699 to 4.951 GeV and Search for Zcs±​ in the Zcs±​→K±ψ(2S) Decay

Search for e+e−→η′ψ(2S) at center-of-mass energies from 4.66 to 4.95 GeV

Evidence of transverse polarization of $Ξ^{0}$ hyperon in $ψ (3686) \to Ξ^{0} Ξ ˉ^{0}$

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

Measurement of the space-like $π^{0}$ transition form factor

Search for $η_{c} (2 S) \to p p ˉ K^{+} K^{-}$ and measurement of $χ_{c J} \to p p ˉ K^{+} K^{-}$ in $ψ (3686)$ radiative decays

Observation of $χ_{c 0} \to Σ^{+} Σ ˉ^{-} η$ and evidence for $χ_{c 1, 2} \to Σ^{+} Σ ˉ^{-} η$

Measurement of the $e^{+} e^{-} \to K^{+} K^{-} ψ (2 S)$ Cross Section at Center-of-Mass Energies from 4.699 to 4.951 GeV and Search for $Z_{cs}^{\pm}$ in the $Z_{cs}^{\pm} \to K^{\pm} ψ (2 S)$ Decay

Search for $e^{+} e^{-} \to η^{'} ψ (2 S)$ at center-of-mass energies from 4.66 to 4.95 GeV