W. Kühn

collaborators

3 papers

hep-ex2025

Measurement of the hyperon weak radiative decay $Ξ^{0} \to γ Σ^{0}$ at BESIII

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

The hyperon weak radiative decay $Ξ^{0} \to γ Σ^{0}$ is measured via the process $J / ψ \to Ξ^{0} Ξ ˉ^{0}$ . The absolute branching fraction of $Ξ^{0} \to γ Σ^{0}$ is determined to be $(3.69\pm 0.21_{\t…

hep-ex2025

Unraveling the structure of $Λ$ hyperons with polarized $Λ Λ ˉ$ pairs

The BESIII Collaboration

With data collected in a dedicated energy scan from 2.3864 up to 3.0800 GeV, the BESIII collaboration provides the first complete energy-dependent measurements of the $Λ$ electroma…

hep-ex2025

Observation of Three Resonant Structures in the Cross Section of $e^{+} e^{-} \to π^{+} π^{-} h_{c}$

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

Using $e^{+} e^{-}$ collision data collected with the BESIII detector operating at the Beijing Electron Positron Collider, the cross section of $e^{+} e^{-} \to π^{+} π^{-} h_{c}$ is measured at 59…

Measurement of the hyperon weak radiative decay Ξ0→γΣ0 at BESIII

Unraveling the structure of Λ hyperons with polarized ΛΛˉ pairs

Observation of Three Resonant Structures in the Cross Section of e+e−→π+π−hc​

Measurement of the hyperon weak radiative decay $Ξ^{0} \to γ Σ^{0}$ at BESIII

Unraveling the structure of $Λ$ hyperons with polarized $Λ Λ ˉ$ pairs

Observation of Three Resonant Structures in the Cross Section of $e^{+} e^{-} \to π^{+} π^{-} h_{c}$